Science Book 2
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Science Book 2
Science Book 2 continues the Real Science-4-Kids sequence with a more rigorous pace while keeping science clear, structured, and confidence building. Students build on an Atoms First foundation, strengthening their understanding of matter and change and connecting ideas across the five core sciences: chemistry, biology, physics, geology, and astronomy.
Why Atoms First works
Most science programs start with an old “properties of matter” approach that often bakes in misconceptions early, then later expects students to master modern atomic and molecular theory in high school and college. It’s like trying to navigate a new world with an old map. Many students struggle to connect the pieces, and they end up thinking science is confusing or not for them.
Real Science-4-Kids does it differently. We use a modern map from the start. Our Atoms First approach begins with atoms and molecules as the foundation for understanding matter and change, and we use correct vocabulary and accurate concepts to prevent misconceptions before they begin. Yes, even young learners can grasp these ideas when they’re taught clearly. The result is science that feels connected, logical, and confidence building from the very beginning.
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Who This Is Best For
Science Book 2 is best for students who are ready for a more rigorous pace while still keeping science clear and manageable. RS4K is flexible by reading ability, so families can start with support and transition to independent work as students grow.
Grades 2–3 (homeschool)
A great fit with parent read aloud support as students build vocabulary, comprehension, and scientific thinking.
Grade 3–4+
Strong for independent readers who are ready to own the reading.
Standards based classrooms (public and charter)
A strong fit starting in Grade 3, then continuing one book per year.
If a student is not yet reading independently, RS4K also recommends starting with read aloud Science Literacy options first, then entering the Science Series.
Available Formats
Textbook
Hardcover print
Open and Go 3 Book Set
Hardcover textbook plus Student Pages and Teacher Pages in print
Digital Bundle, 1 Year Access
All core resources delivered through the RS4K Teaching Dashboard, including digital textbook views, student pages, and teacher support in one organized place
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Reading level: Grade 3+ for independent work
Learn more about grade levels and placement for the Science Series:
https://rs4k.com/pages/faq
Force, Energy, & Inertia
In Book 2, students are introduced not only to force & energy, but also inertia - which keeps things moving. With our program students build foundational knowledge that will last a lifetime.
Create, Explore, Design
Head over to our Experiment Hub where students learn the scientific method, engineering & design principles, and problem solving with our free activities. Just download & print!
1 - 2 - 3 Simple Steps to Science
Your child's science learning begins with chapter one. Just open the book and have them begin reading. No subscription fees, technology set up, or internet necessary.
Find the Perfect ExperimentBrowse through our Experiment Hub to find one that captures their imagination. Students engage in direct-instructional experiments, design projects, and more. Just download, print and let the fun begin.
The Power of PlayJoin your child while they learn science and reinforce the idea that play is crucial in learning science. Encourage your child to explore and experiment.
Notes From Our Fans
RS4K's curriculum structure is excellent. It systematically covers chemistry, physics, biology, astronomy, and geology,
ensuring that students build their knowledge step by step. My son is more confident in his science skills now, thanks to this program.
The thoroughness of RS4K's curriculum is unparalleled.
It goes beyond superficial NGSS alignment to offer a comprehensive and accurate understanding of science. My students love the hands-on experiments and
engaging content.
