For families choosing educational science books for kids, my best overall pick is National Geographic Kids Science Encyclopedia for its broad mix of topics, images, and approachable explanations. 101 Great Science Experiments is a stronger fit for children who learn by doing, while What Makes Day and Night offers a more focused, younger-reader introduction to a single science idea. The main tradeoff is breadth versus depth: a wide-ranging encyclopedia invites browsing, while a topic-specific book or experiment guide can hold attention through a particular question or activity. Age, reading confidence, and adult help also affect which format works best. Read on for the full breakdown and guidance on matching a book to your child.
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Key Takeaways
- The broadest books serve different purposes: National Geographic Kids Science Encyclopedia spans many subjects, while The Usborne Science Encyclopedia and Knowledge Encyclopedia – Science give buyers alternate reference-book formats to compare.
- Hands-on learning is its own category: 101 Great Science Experiments and The Everything Kids’ Science Experiments Book suit children who want to test ideas, but activities may call for supplies and adult supervision.
- Visual question-and-answer books encourage browsing: 100,000 Whys for Smart Kids, 100,000 Whys for Kids, and National Geographic Kids Why? organize science around curiosity rather than a single linear lesson.
- Focused books can fit younger or topic-led readers better: What Makes Day and Night concentrates on Earth’s rotation, while Atoms (My First Science Textbook) Volume 1 narrows the subject to a foundational science concept.
- Not every strong pick is an encyclopedia: The Berenstain Bears’ Big Book of Science and Nature offers a story-led route, and Science Essentials is a boxed set for families who prefer a group of introductory books.
| The Mysteries of the Universe: Discover the Best-Kept Secrets of Space |  | Best for Space-Curious Readers | Series: DK Children’s Anthologies | Format: Children’s anthology | Subject: Space and the universe | VIEW LATEST PRICE | See Our Full Breakdown |
| Science Essentials: Science Made Easy Boxed Set (6 Books) |  | Best Multi-Book Starter Set | Format: Boxed set | Number of books: 6 | Illustrated: Yes | VIEW LATEST PRICE | See Our Full Breakdown |
| 101 Great Science Experiments: A Step-by-Step Guide |  | Best for Hands-On Learning | Number of experiments: 101 | Format: Step-by-step experiment guide | Coverage: A variety of scientific topics | VIEW LATEST PRICE | See Our Full Breakdown |
| The Usborne Science Encyclopedia |  | Best for Broad Reference and Follow-Up Learning | Format: Science encyclopedia | Topics: Gravity, flight, genes, and DNA | Video clips: Over 180 | VIEW LATEST PRICE | See Our Full Breakdown |
| The Berenstain Bears’ Big Book of Science and Nature |  | Best for Familiar, Story-Friendly Introductions | Series: Dover Science for Kids | Subject: Science and nature | Featured characters: The Berenstain Bears | VIEW LATEST PRICE | See Our Full Breakdown |
| Atoms (My First Science Textbook) Volume 1 |  | Best for First Chemistry Lessons | Series: My First Science Textbook | Volume: 1 | Primary subject: Atoms | VIEW LATEST PRICE | See Our Full Breakdown |
| Knowledge Encyclopedia: Human Body |  | Best for Visual Anatomy Browsing | Series: Knowledge Encyclopedia | Primary subject: Human body | Format: Illustrated encyclopedia | VIEW LATEST PRICE | See Our Full Breakdown |
| 100,000 Whys for Smart Kids: A Visual Encyclopedia for Curious Kids |  | Best for Question-Led Browsing | Format: Visual encyclopedia | Intended age range: 6–12 years | Content: Big questions and unusual facts | VIEW LATEST PRICE | See Our Full Breakdown |
| The Science Book: Everything You Need to Know About the World and How It Works |  | Best Broad Science Reference | Primary format: Illustrated science guide | Subjects: Physics, chemistry, biology, and astronomy | Explanation style: Clear, accessible language | VIEW LATEST PRICE | See Our Full Breakdown |
| National Geographic Kids Why?: Over 1,111 Answers to Everything |  | Best for Wide-Ranging Q&A | Publisher: National Geographic Kids | Format: Question-and-answer reference | Question count: More than 1,111 | VIEW LATEST PRICE | See Our Full Breakdown |
| National Geographic Kids Science Encyclopedia: Atom Smashing, Food Chemistry, Animals, Space, and More! |  | Best for Topic Variety | Series: National Geographic Kids Encyclopedias | Book type: Science encyclopedia | Topics: Atom smashing, food chemistry, animals, space, and more | VIEW LATEST PRICE | See Our Full Breakdown |
| Knowledge Encyclopedia – Science |  | Best Illustrated Starting Point | Book type: Science encyclopedia | Coverage: Key science topics | Presentation: Child-friendly explanations | VIEW LATEST PRICE | See Our Full Breakdown |
| The Everything Kids’ Science Experiments Book: Boil Ice, Float Water, Measure Gravity—Challenge the World Around You! |  | Best for Hands-On Learning | Series: The Everything Kids series | Book type: Science experiments activity book | Format: Book | VIEW LATEST PRICE | See Our Full Breakdown |
| What Makes Day and Night: An Illustrated Nonfiction Book About Earth’s Rotation with Experiments for Kids (Ages 4-8) |  | Best for Preschool and Early Readers | Series: Let’s-Read-and-Find-Out Science | Book type: Illustrated nonfiction | Main subject: Earth’s rotation and the cause of day and night | VIEW LATEST PRICE | See Our Full Breakdown |
| 100,000 Whys for Kids: A Full-Color Visual Encyclopedia of Big Questions and Clear Answers for Ages 6–13 |  | Best Cross-Subject Browse | Book type: Visual encyclopedia | Format: Full-color | Age range: Ages 6–13 | VIEW LATEST PRICE | See Our Full Breakdown |
| educational science books for kid | Format |
|---|---|
| The Mysteries of the Universe: | Children’s anthology |
| Science Essentials: Science Ma | Boxed set |
| 101 Great Science Experiments: | Step-by-step experiment guide |
| The Usborne Science Encycloped | Science encyclopedia |
| The Berenstain Bears’ Big Book | Children’s book |
| Atoms | — |
| Knowledge Encyclopedia: Human | Illustrated encyclopedia |
| 100,000 Whys for Smart Kids: A | Visual encyclopedia |
| The Science Book: Everything Y | — |
| National Geographic Kids Why?: | Question-and-answer reference |
| National Geographic Kids Scien | Not specified |
| Knowledge Encyclopedia | — |
| The Everything Kids’ Science E | Book |
| What Makes Day and Night: An I | — |
| 100,000 Whys for Kids: A Full- | Full-color |
More Details on Our Top Picks
The Mysteries of the Universe: Discover the Best-Kept Secrets of Space
Space-focused exploration gives this anthology a clear role for children drawn to planets, stars, and the universe’s unanswered questions. Compared with The Usborne Science Encyclopedia, which ranges across subjects such as gravity, flight, genes, and DNA, this book keeps its attention on space rather than serving as a broad science reference. That narrower scope can make it a more inviting starting point for a child with a strong astronomy interest, but it offers less variety for readers who want to move between scientific fields. The listing identifies it as part of DK Children’s Anthologies, but supplies no details on age range, chapter structure, or specific topics, so I would choose it for the subject match rather than a known reading level or depth. Its main tradeoff is limited information about what the anthology covers.
Pros:- Concentrates on space, making it a subject-specific choice for astronomy-minded children.
- Anthology format can offer a range of space-related material in one book.
- Part of the DK Children’s Anthologies series.
Cons:- The supplied product details do not identify particular space topics or how deeply they are covered.
- No age range or reading-level information is provided.
- Unlike experiment guides, it is not described as offering hands-on activities.
Best for: Children who are already curious about space and families seeking a focused science book to encourage that interest.
Not ideal for: Readers looking for experiments, a wide range of science subjects, or a clearly specified age level and topic list.
- Series:DK Children’s Anthologies
- Format:Children’s anthology
- Subject:Space and the universe
- Stated focus:Mysteries and secrets of space
- Audience:Children
- ASIN:1465499334
Our verdict“Choose this for a child who wants a space-centered read, but pick a broader reference if their interests span several sciences.”
Science Essentials: Science Made Easy Boxed Set (6 Books)
Six illustrated books make this set a practical pick for families who want more than a single introduction to science. Its simplified explanations aim to make concepts approachable, while the boxed format gives a child several volumes to browse rather than one long reference. Compared with The Mysteries of the Universe, this set is described as covering science more generally, so it may suit children whose interests have not settled on one subject. The tradeoff is that the listing names no individual topics, age range, or reading progression; buyers cannot tell whether the six books build on one another or which subjects they cover. I would treat it as an accessible general starting point, not a targeted curriculum or a set chosen to answer a particular science interest.
Pros:- Six books provide more than a single-volume introduction.
- Illustrations support young readers as they encounter science ideas.
- Simplified explanations are intended to make concepts accessible.
- Boxed set keeps the books together as a collection.
Cons:- The supplied details do not identify the six books’ individual subjects.
- No age range or reading-level guidance is given.
- No experiments or other hands-on features are specified.
Best for: Families looking for an illustrated, simplified introduction that gives a young reader several science books to explore.
Not ideal for: Buyers who need a known age level, a specific set of science topics, or activities that clearly build skills from book to book.
- Format:Boxed set
- Number of books:6
- Illustrated:Yes
- Audience:Children
- Presentation:Simplified science explanations
- Subject:Science
- ASIN:9358561475
Our verdict“Pick this set for a child who benefits from several approachable illustrated books, provided the unspecified topics are acceptable.”
101 Great Science Experiments: A Step-by-Step Guide
101 experiments give this guide the strongest activity focus among these five books. Clear, step-by-step instructions can help children follow a process, while explanations of the underlying principles connect each activity to the science behind it. That makes it a different choice from The Usborne Science Encyclopedia, which offers broad topic coverage and linked video and website resources rather than a stated collection of experiments. The hands-on format is a good fit for shared home learning or classroom use, but it comes with a practical tradeoff: some activities may call for materials that are not included. The description also gives no age range or supply list, so adults may need to check each experiment before choosing one for a child to do independently.
Pros:- Offers 101 experiments across a variety of science topics.
- Step-by-step instructions give activities a clear sequence.
- Explains the scientific principles behind the experiments.
- Described as suitable for classroom or at-home learning.
Cons:- Some experiments may require additional materials not supplied with the book.
- No age range or independent-use guidance is provided.
- The description does not specify which topics or supplies appear in individual experiments.
Best for: Parents and educators seeking a large collection of guided science activities with explanations to support learning.
Not ideal for: Readers who want a browsable science encyclopedia, or families who need activities with all materials included and a stated age range.
- Number of experiments:101
- Format:Step-by-step experiment guide
- Coverage:A variety of scientific topics
- Instructions:Clear, step-by-step directions
- Science explanations:Explains principles behind activities
- Suggested use:Classroom or at-home learning
- ASIN:1465428267
Our verdict“Choose this for guided, hands-on science sessions, but check activity supplies and suitability before starting.”
The Usborne Science Encyclopedia
Broad science coverage makes this the strongest reference-style pick in this group: the listed topics range from gravity and flight to genes and DNA. More than 180 video clips and recommendations for 1,000 websites provide routes to continue learning beyond the pages, a different approach from 101 Great Science Experiments, which centers on activities and their explanations. This resource-rich format suits a child who likes to look up varied questions, though it may be less satisfying for someone who mainly wants to make and test things. The large number of external recommendations also means the experience depends partly on access to a suitable device and internet connection. The product details do not specify an age range or explain how the videos and links are accessed.
Pros:- Covers varied topics, including gravity, flight, genes, and DNA.
- Includes access to more than 180 video clips.
- Recommends 1,000 websites for further learning.
- Reference format supports looking up different science subjects.
Cons:- The external resources may require internet access and a suitable device.
- No age range or reading-level guidance is provided.
- The listing does not describe hands-on experiments.
Best for: Curious readers who want a wide-ranging science reference and can make use of linked videos and online recommendations.
Not ideal for: Families seeking a hands-on experiment book, a fully offline resource, or guidance on a specific reading level.
- Format:Science encyclopedia
- Topics:Gravity, flight, genes, and DNA
- Video clips:Over 180
- Recommended websites:1,000
- Illustrated:Yes
- Audience:Young readers
- ASIN:1805079018
Our verdict“Choose this for a child who likes exploring many science topics and can use its linked resources, rather than for experiment-led learning.”
The Berenstain Bears’ Big Book of Science and Nature
Familiar Berenstain Bears characters give this book a more approachable entry point than a conventional reference such as The Usborne Science Encyclopedia. Its science-and-nature focus may appeal to children who are more comfortable meeting ideas through recognizable characters than browsing a broad encyclopedia. It is part of the Dover Science for Kids series, but the supplied details do not name specific concepts, explain how information is presented, or give an age range. That limits how confidently I can match it to a particular subject or reading level. Compared with 101 Great Science Experiments, it is not described as an activity guide, so families seeking step-by-step projects should look elsewhere. Its clearest strength is the familiar character connection, with less detail available about the science content itself.
Pros:- Introduces science and nature in a children’s book.
- Uses the familiar Berenstain Bears characters as an entry point.
- Part of the Dover Science for Kids series.
Cons:- The supplied details do not identify specific topics or concepts.
- No age range or reading-level information is provided.
- No experiments or other hands-on features are described.
Best for: Young children who are drawn to the Berenstain Bears and may respond better to a character-led introduction to science and nature.
Not ideal for: Families looking for named science topics, hands-on experiments, or a specified age and reading level.
- Series:Dover Science for Kids
- Subject:Science and nature
- Featured characters:The Berenstain Bears
- Format:Children’s book
- Audience:Children
- ASIN:0486498344
Our verdict“Pick this for a child who enjoys the Berenstain Bears, but choose a more detailed reference or experiment guide for specific science learning goals.”
Atoms (My First Science Textbook) Volume 1
Atoms (My First Science Textbook) Volume 1 is the most focused choice here for a young learner beginning chemistry. Its beginner-friendly explanations and colorful illustrations aim to make the tiny building blocks of matter easier to grasp, giving it a clearer starting point than broad references such as The Science Book: Everything You Need to Know About the World and How It Works. That narrow focus can help an elementary-age reader stay with one foundational idea rather than bounce among subjects. The tradeoff is limited scope: it is not the pick for a child seeking a wide-ranging science reference or detailed explanations beyond introductory concepts. Compared with 100,000 Whys for Smart Kids, it offers a more textbook-like path through one topic, while that encyclopedia promises variety and brain challenges.
Pros:- Age-appropriate language supports early independent reading or shared lessons.
- Colorful illustrations can make microscopic concepts easier to picture.
- Focused introduction to atoms and basic chemistry.
- Fits naturally alongside elementary science curricula.
Cons:- Limited depth may not hold the interest of advanced or older learners.
- Narrower subject coverage than broad science encyclopedias in this roundup.
Best for: Elementary learners who want a visual, introductory resource for atoms and basic chemistry, especially alongside a science curriculum.
Not ideal for: Older students or children ready for detailed chemistry, since the described content is introductory and limited to foundational ideas.
- Series:My First Science Textbook
- Volume:1
- Primary subject:Atoms
- Related subject:Basic chemistry
- Intended audience:Young readers
- Approach:Beginner-friendly explanations
- Visual format:Colorful illustrations
Our verdict“Choose this for a young learner’s first visual introduction to atoms, but pick a broad encyclopedia for wider science coverage.”
Knowledge Encyclopedia: Human Body
Knowledge Encyclopedia: Human Body is the most subject-specific reference in this group: it centers on anatomy rather than trying to cover all of science. That makes it a possible fit for a child whose questions are about the body, while The Science Book: Everything You Need to Know About the World and How It Works offers broader coverage across fields. The title and description indicate an illustrated overview, which may suit browsing and visual learning, but the available product information does not establish its age range, level of detail, or how its explanations are organized. I would treat it as a targeted reference, not assume it works as a complete anatomy course. Readers wanting hands-on activities or a wider mix of subjects may get more from experiment books or general science encyclopedias in this roundup.
Pros:- Dedicated focus on human anatomy rather than scattered body-related facts.
- Illustrated format is suited to visual browsing.
- Can complement broader science books with a body-specific reference.
- The encyclopedia format suggests a reference-oriented use rather than a single experiment sequence.
Cons:- The supplied information does not specify age range or reading level.
- No details are available about anatomy coverage, explanation style, or activity content.
- Its narrow subject focus is less useful for children seeking science across multiple fields.
Best for: Families looking for a visual, human-body-focused reference for a child currently curious about anatomy.
Not ideal for: Buyers who need a confirmed age range, specific anatomy topics, activity instructions, or evidence of the book’s depth before choosing.
- Series:Knowledge Encyclopedia
- Primary subject:Human body
- Format:Illustrated encyclopedia
- Content approach:Visual overview of human anatomy
- Age range:Not provided
- Reading level:Not provided
Our verdict“Consider it for a child seeking an illustrated anatomy reference, but verify the book’s scope and reading level if those details matter.”
100,000 Whys for Smart Kids: A Visual Encyclopedia for Curious Kids
100,000 Whys for Smart Kids suits children who learn by hopping from one question to another. Its stated audience of ages 6–12, broad mix of questions and unusual facts, and 500 brain challenges give it more variety than the atom-focused Atoms (My First Science Textbook) Volume 1. That makes it a better choice for casual browsing or a child who wants quick explanations across topics, rather than a structured first lesson in chemistry. The challenges may add an active element beyond reading, though the available description does not explain their format or how closely they connect to science concepts. Content depth and quality are also not detailed, so families seeking a dependable, subject-by-subject reference may prefer a clearly scoped encyclopedia.
Pros:- Designed for a clearly stated age range of 6–12.
- Question-and-answer approach encourages browsing around a child’s interests.
- Covers varied questions and unusual facts.
- Includes 500 brain challenges for added problem-solving activity.
Cons:- The available information does not establish how deep or accurate the explanations are.
- The challenge format and its connection to science topics are unspecified.
- Broad question coverage may offer less subject-by-subject structure than a focused textbook.
Best for: Curious children ages 6–12 who enjoy short answers, varied facts, and brain challenges more than a single-topic textbook.
Not ideal for: Readers who need a structured science curriculum or detailed coverage of a specific subject, since the provided description does not establish depth or organization.
- Format:Visual encyclopedia
- Intended age range:6–12 years
- Content:Big questions and unusual facts
- Explanation style:Clear explanations
- Brain challenges:500
- Subject approach:Broad question-led coverage
Our verdict“Pick this for an inquisitive 6–12-year-old who likes varied questions and puzzles, not for a structured science course.”
The Science Book: Everything You Need to Know About the World and How It Works
The Science Book: Everything You Need to Know About the World and How It Works is the broadest all-in-one science choice among these five, spanning physics, chemistry, biology, and astronomy. Its accessible explanations and full-color illustrations and diagrams make it better suited to children who want to move between fields than Atoms (My First Science Textbook) Volume 1, which concentrates on an introductory chemistry topic. That breadth can make it a useful shelf reference for a curious family, but it also means a reader looking for a guided sequence or substantial depth in one subject may need another book. The description notes that it may not satisfy advanced learners, and its large format can be awkward to carry. Compared with question-led 100,000 Whys for Smart Kids, this is positioned more as a broad science guide than a collection of brain challenges.
Pros:- Covers physics, chemistry, biology, and astronomy in one volume.
- Clear, accessible explanations support general readers.
- Full-color illustrations and diagrams help explain scientific ideas.
- Broad scope makes it useful for browsing across science topics.
Cons:- The breadth may come at the expense of depth for advanced learners.
- Large format can be cumbersome to carry.
- Less focused than a dedicated first chemistry or anatomy book.
Best for: Families seeking one illustrated reference that introduces children and other curious readers to several major science fields.
Not ideal for: Advanced students needing detailed subject study or children who want a compact book to take on the go.
- Primary format:Illustrated science guide
- Subjects:Physics, chemistry, biology, and astronomy
- Explanation style:Clear, accessible language
- Illustrations:Full-color illustrations and diagrams
- Intended audience:Curious readers of all ages
- Depth:Broad overview
- Format note:Large format
Our verdict“Choose this as a broad, illustrated science reference for curious readers, but not as an advanced text or portable guide.”
National Geographic Kids Why?: Over 1,111 Answers to Everything
National Geographic Kids Why?: Over 1,111 Answers to Everything is the question-led pick for children who prefer finding answers one curiosity at a time. The stated count of more than 1,111 questions gives it a different browsing promise from The Science Book: Everything You Need to Know About the World and How It Works, which is described as a broad science guide with coverage across named scientific fields. This book may work well as a casual reference, but the available details do not identify its topics, reading level, layout, or how much of its coverage is science-focused. I would not choose it as a substitute for a clearly scoped biology or chemistry resource without checking the contents. The publisher is identified as National Geographic Kids, but that alone does not clarify the book’s depth or format.
Pros:- Promises answers to more than 1,111 questions.
- Question-led format can suit browsing driven by a child’s interests.
- Published by National Geographic Kids.
- Offers a distinct alternative to subject-specific titles such as the atoms textbook.
Cons:- The available product information does not identify the topics covered.
- No age range or reading level is specified.
- Format and depth are not described, making it hard to judge as a science-learning resource.
Best for: Children who enjoy asking assorted questions and families seeking a question-and-answer reference from National Geographic Kids.
Not ideal for: Buyers who need confirmed science topics, a specific age range, or detailed subject coverage before selecting a book.
- Publisher:National Geographic Kids
- Format:Question-and-answer reference
- Question count:More than 1,111
- Topic range:Wide-ranging; specific subjects not provided
- Age range:Not provided
- Reading level:Not provided
Our verdict“Consider it for a child who likes broad question-and-answer browsing, but check the contents if science coverage is your main priority.”
National Geographic Kids Science Encyclopedia: Atom Smashing, Food Chemistry, Animals, Space, and More!
I’d choose this encyclopedia for a child whose science interests keep changing: its range spans food chemistry, animals, space, and atom smashing, so readers can browse rather than follow a single course. That breadth sets it apart from What Makes Day and Night, which gives younger children a focused explanation of one idea, paired with activities. The National Geographic Kids title is a stronger fit for quick reference and topic-hopping, but the supplied information does not specify experiments, age range, or how deeply each subject is explained. That makes it harder to judge whether it will satisfy a child seeking step-by-step activities or advanced detail. I’d pick it for a curious reader who enjoys dipping into different science subjects, not as a substitute for a hands-on experiment book.
Pros:- Covers varied subjects, including food chemistry, animals, space, and atom smashing
- Designed for children
- Encyclopedia format supports browsing across topics
Cons:- The supplied details do not identify an age range or reading level
- No hands-on experiments are specified
- The depth and organization of individual topics are not described
Best for: Children who like browsing across several science subjects and families seeking one broad science reference.
Not ideal for: Young children who need a specified age-level reading guide, or hands-on learners looking mainly for experiments.
- Series:National Geographic Kids Encyclopedias
- Book type:Science encyclopedia
- Topics:Atom smashing, food chemistry, animals, space, and more
- Audience:Children
- Format:Not specified
- Age range:Not specified
Our verdict“Choose this for a child who wants a broad, browseable science reference rather than a focused activity book.”
Knowledge Encyclopedia – Science
For a young reader just beginning to explore science, I’d favor this book’s child-friendly explanations and vivid illustrations over the broader but less specifically described National Geographic Kids Science Encyclopedia. Its stated aim is to introduce key scientific concepts in an accessible way, which can make general reading feel less like a textbook. The tradeoff is that the description also flags limited depth for advanced readers and a possibility that some discoveries may not be current. Unlike The Everything Kids’ Science Experiments Book, this is presented as an illustrated overview, not a collection of activities; it suits reading and visual learning more than learning by doing. The supplied product details do not name an age range, so I’d match it to a child’s reading ability rather than assume it fits every beginner.
Pros:- Broad coverage of key science topics
- Child-friendly language is intended to make concepts accessible
- Vivid illustrations support visual learning
- Can help spark early interest in STEM
Cons:- May not provide enough depth for advanced readers
- Some scientific coverage may not reflect the latest discoveries
- No age range or hands-on activities are specified in the supplied details
Best for: Early elementary readers who benefit from clear explanations and illustrations while getting acquainted with major science topics.
Not ideal for: Older children seeking detailed scientific explanations, hands-on projects, or coverage of the latest discoveries.
- Book type:Science encyclopedia
- Coverage:Key science topics
- Presentation:Child-friendly explanations
- Illustrations:Vivid illustrations
- Intended audience:Children beginning to explore the natural world
- Age range:Not specified
Our verdict“Pick this as an illustrated introduction for a beginner, but choose an experiment book for a child who learns by doing.”
The Everything Kids’ Science Experiments Book: Boil Ice, Float Water, Measure Gravity—Challenge the World Around You!
I’d give this book the nod when a child wants to try science, not just read about it. Its experiments explore subjects such as ice, water, and gravity, turning broad concepts into activities that invite observation and testing. That makes it a different choice from Knowledge Encyclopedia – Science, which is described as an illustrated overview with child-friendly explanations but no specified experiments. The hands-on focus is its main advantage, though the supplied description does not list the full set of activities, required materials, or age guidance. Families looking for an easy reference to browse across animals, space, and other topics may prefer the National Geographic Kids encyclopedia. I’d choose this for activity-led learning, while checking whether the particular experiments fit the child and the materials available at home.
Pros:- Encourages hands-on exploration
- Includes experiments involving ice, water, and gravity
- Covers a range of science topics
- Designed for children
Cons:- The supplied details do not give an age range
- Experiment materials and supervision needs are not specified
- Less suited to browsing as a general reference than an encyclopedia
Best for: Families with children who enjoy trying simple activities and learning science concepts through observation.
Not ideal for: Readers who want an illustrated reference encyclopedia, or caregivers who need confirmed age guidance and materials lists before choosing activities.
- Series:The Everything Kids series
- Book type:Science experiments activity book
- Format:Book
- Example topics:Ice, water, and gravity
- Intended audience:Children
- Age range:Not specified
Our verdict“Choose this for a child who learns best by carrying out activities rather than reading a broad science overview.”
What Makes Day and Night: An Illustrated Nonfiction Book About Earth’s Rotation with Experiments for Kids (Ages 4-8)
For children ages 4–8, this focused book makes a complex idea—Earth’s rotation—more approachable through illustrations and simple experiments. I’d choose it over the wider-ranging National Geographic Kids Science Encyclopedia when a child needs one clear concept explained at an early reading level, rather than a collection of subjects to browse. Its narrow scope is also its limit: a reader looking for a general science reference or a run of experiments across different topics may get more use from The Everything Kids’ Science Experiments Book. The age guidance helps families make a closer match, but the description warns that older children may find the material basic. I see it as a good shared-reading introduction to day and night, not a lasting all-purpose science book.
Pros:- Explains Earth’s rotation through a child-friendly topic
- Includes colorful illustrations
- Simple experiments support active learning
- Specified age range helps families judge fit
Cons:- The subject is limited to day, night, and Earth’s rotation
- May be too basic for children older than eight
- Less useful as a broad science reference than an encyclopedia
Best for: Caregivers reading with children ages 4–8 who are curious about the sun, Earth, and why day changes to night.
Not ideal for: Children older than eight who want more depth, or families seeking a broad science encyclopedia or varied activity collection.
- Series:Let’s-Read-and-Find-Out Science
- Book type:Illustrated nonfiction
- Main subject:Earth’s rotation and the cause of day and night
- Activities:Simple hands-on experiments
- Age range:Ages 4–8
- Illustrations:Colorful illustrations
Our verdict“Choose this for an illustrated, activity-supported introduction to Earth’s rotation for a child ages 4–8.”
100,000 Whys for Kids: A Full-Color Visual Encyclopedia of Big Questions and Clear Answers for Ages 6–13
This pick is for households where science questions quickly lead into history, inventions, animals, or nature. Its full-color visual encyclopedia covers those subjects alongside space and how the world works, giving children ages 6–13 room to browse beyond science alone. Compared with the more science-specific National Geographic Kids Science Encyclopedia, it offers wider subject variety but less clearly defined science-only coverage in the supplied description. It is also a reference-style choice, unlike The Everything Kids’ Science Experiments Book, which centers on doing activities. The broad age span and topic mix can suit siblings with different interests, but the details do not specify the depth of answers or include experiments. I’d choose it for curiosity-led browsing, not when a child needs a structured science lesson.
Pros:- Covers science alongside space, animals, nature, history, and inventions
- Full-color visual format supports browsing
- Stated age range spans ages 6–13
- Big-question format invites curiosity across subjects
Cons:- Science is one part of a wider topic mix rather than the sole focus
- The supplied details do not specify depth or reading level within the age range
- No experiments or hands-on activities are listed
Best for: Families with children ages 6–13 who want one illustrated reference spanning science and other curiosity-driven subjects.
Not ideal for: Children seeking a science-only book, detailed explanations, or guided experiments and projects.
- Book type:Visual encyclopedia
- Format:Full-color
- Age range:Ages 6–13
- Topics:Science, space, animals, nature, history, inventions, and how the world works
- Presentation:Big questions and clear answers
- Experiments:Not specified
Our verdict“Choose this for a visually oriented child who likes jumping between science and other big questions, not for focused science instruction.”
How We Picked
I compared these books by how clearly they introduce science, how easily children can use them independently, and whether the format invites sustained curiosity. I also considered topic range, illustration and reference value, the role of experiments or stories, and the likely need for an adult to guide reading or activities. For a child who prefers browsing, a visual encyclopedia can be more useful than a sequential textbook; for a child who wants to try ideas firsthand, an experiment guide may be a better match.
The ranking favors books with broad usefulness across common family reading situations, while giving specialized titles credit when they serve a distinct need. That is why a broad science reference sits ahead of focused books, but hands-on, early-reader, and topic-specific options still earn clear roles. Titles that overlap in format are separated by their intended reading experience, not treated as interchangeable: a boxed set, a story-led book, and a question-and-answer encyclopedia each ask a child to engage with science differently.
Factors to Consider When Choosing Educational Science Books For Kids
Before choosing a title, I would start with how your child is likely to use it: reading from beginning to end, looking up questions, or carrying out an activity. These broader choices can matter more than the number of subjects a book covers.
Match the format to how your child learns
Some children enjoy reading explanations in sequence, while others jump between illustrations, questions, and short facts. A reference book supports quick browsing, but it can feel fragmented to a child who wants one continuous explanation. A story-led book may draw in a reluctant reader, though it usually cannot cover as many concepts as an encyclopedia. Experiment books add a physical task, which can make an idea easier to remember, but they depend on a child being willing to follow instructions. Think about what your child already chooses during free reading rather than buying only for the format adults find most educational.
Choose an age fit by reading demands, not age labels alone
Two children of the same age can have very different reading stamina and science background. Dense pages, unfamiliar vocabulary, and long explanations may require an adult even when the subject interests a child. Picture-heavy layouts can make a book easier to browse, but visual design does not automatically mean the explanations are simple. If your child is new to nonfiction, consider whether short sections and clear diagrams will help them read independently. For a more confident reader, a narrowly focused or text-richer book may offer more room to build knowledge.
Decide whether breadth or depth matters more
A broad science encyclopedia gives children many entry points and can serve as a household reference over time. Its tradeoff is that individual topics may receive less sustained attention than they would in a dedicated book. A focused title can answer a particular interest in more detail, though a child may outgrow that topic or move on quickly. Families sometimes mistake a large range of subjects for a complete lesson; a reference book is often better at sparking questions than resolving every one. Choose breadth for open-ended browsing and depth when a specific question is already driving the purchase.
Check what hands-on activities ask of your household
Experiment books can bring science into the kitchen or play area, but an activity is only practical if its materials and steps suit your household. Look for instructions your child can follow, and think about whether an adult needs to supervise, prepare materials, or help explain results. A book with many experiments is not automatically the better choice if setup becomes a barrier to using it. Also consider whether your child enjoys repeating a test and discussing what happened, rather than simply completing a task. For independent browsing, a visual reference may see more regular use than a project-heavy guide.
Look beyond the subject list to the book’s lasting role
Before buying another general science reference, check whether it offers a meaningfully different experience from books your child already owns. A second encyclopedia may still be useful if its illustrations, question format, or level of explanation suits a different reader. A boxed set can provide variety across several introductory books, while a single-topic title may make a better gift for a child with a strong current interest. Think about where the book will live and whether its size and layout make casual browsing comfortable. A book that gets revisited for answers or activities may have more value for your family than one that covers the most topics on paper.
Frequently Asked Questions
Should I choose a science encyclopedia or an experiment book first?
Choose an encyclopedia if your child likes asking varied questions, flipping through illustrations, or returning to a book for quick explanations. An experiment book is a better starting point if they learn by trying things and enjoy following instructions. The practical difference is that experiments may need supplies, setup, and adult involvement, while reference books are usually easier to pick up for a short reading session. You do not need both at once: start with the format your child is most likely to use without prompting. Add the other type later if their interests broaden.
Are question-and-answer science books useful for children who do not read cover to cover?
Yes, their short entries can suit children who prefer to read in bursts or follow a question that has just come up. They may also make it easier for a parent and child to share reading, since either person can choose a topic. The tradeoff is that separate answers may not build a connected explanation of a larger subject. If your child wants to understand how ideas relate, pair this format with a book that explores one topic at greater length. For browsing and casual curiosity, the non-linear structure can be a benefit rather than a drawback.
How can I tell whether a science book will be too advanced?
Look at the amount of text per page, the complexity of diagrams, and whether key terms receive clear explanations. A title aimed at children can still assume background knowledge or independent reading stamina that your child has not developed yet. If possible, preview a sample page and ask whether your child can explain the main idea in their own words. A more advanced book may still work as a shared read, so difficulty does not have to rule it out. The key is whether its level invites questions or makes the child feel shut out.
Are science activity books a good choice if I cannot help with every project?
They can be, but the child’s independence depends on the instructions, materials, and safety needs of each activity. Check whether the book makes adult help clear and whether projects use items that are easy to find at home. A child who can follow steps alone may still need help interpreting a result or handling equipment. If regular supervision is not realistic, choose a reference book or a guide with activities you can do together occasionally. A smaller number of completed experiments can be more rewarding than a book that sits unused because every project feels like a major setup.
What should I buy for a child with one strong interest, such as space or the human body?
A focused title can meet that interest more directly than a broad encyclopedia, especially when the child already asks detailed questions about one subject. A general science reference may still be useful if you want to encourage exploration beyond that favorite topic. You can also use the focused book as a starting point, then look for a broader title when the child begins making connections to other fields. Avoid assuming that a narrow subject means limited educational value; depth can build confidence and reading motivation. Let the child’s current curiosity guide the first choice, then widen the subject range over time.
Conclusion
For the best overall balance of subject range and accessible browsing, I would start with National Geographic Kids Science Encyclopedia. Families seeking a broad reference on a different visual or explanatory style can compare The Usborne Science Encyclopedia and Knowledge Encyclopedia – Science. My best value choice for a child who wants to learn by doing is 101 Great Science Experiments; it makes sense when your household can support the activities. For beginners, especially younger children, What Makes Day and Night offers a focused entry point, while The Berenstain Bears’ Big Book of Science and Nature suits a story-first reader. For specific needs, choose Knowledge Encyclopedia: Human Body for anatomy, The Mysteries of the Universe for space, or one of the 100,000 Whys books for a child who prefers quick answers. Match the book to the way your child wants to explore science, not just to the number of topics on its cover.
