Science Literacy Bundle 4: The Right Words for Big Discoveries

Authentic Vocabulary for Growing Minds

This top-level set of twelve Lexile-scored readers (470L–510L) is made for curious kids ready to explore the most fascinating corners of science. Staying true to our most important rule, every book uses authentic vocabulary for topics like DNA, forces, ecosystems, and space. We give young readers the correct words they need to make sense of advanced ideas, turning complex topics into exciting discoveries they can truly grasp.

Made for Bigger Questions, Built on a Strong Foundation
Designed as the next step for readers of Bundles 1-3, this collection meets kids where their curiosity is growing. With richer text and detailed visuals, each book takes a sophisticated concept, from genetic codes to planetary motion, and makes it clear, engaging, and within reach.

What's in the Bundle: Twelve Books for Deeper Exploration
Each softcover, full-color book opens a door to a new scientific world.

• Bacteria and Archaea (470L): Discover Earth's oldest life forms and where these tiny, powerful microbes thrive.

• Mammals (480L): Learn what makes warm-blooded, fur-covered animals unique in the animal kingdom.

• Viruses (480L): Explore what viruses are, how they spread, and their role in nature.

• DNA (480L): Uncover the molecule of life and how its instructions build every living thing.

• Wheels on a Bike: A Look at Rotational Motion (480L): Dive into the fun physics of spinning wheels and balance.

• Solids, Liquids, and Gases (490L): See how the states of matter change in everyday life.

• Inertia (490L): Learn why objects resist changes to their motion.

• Photosynthesis (500L): Follow the amazing journey of sunlight turning into plant food.

• Sea Stars (500L): Discover how starfish regenerate and their role in the ocean.

• Marshmallows, Mud Pies, and Messy Rooms (500L): Investigate the cool chemistry of mixtures and solutions.

• Planets (510L): Tour our solar system, from rocky worlds to giant gas planets.

• Duck-billed Platypus (510L): Meet one of nature's most puzzling egg-laying mammals.

Designed for Confident, Curious Readers

• Builds Reading Stamina: Longer sentences and richer paragraphs prepare kids for more advanced nonfiction.

• Connects the Dots: Shows how different sciences, like chemistry in mixtures or physics in motion, are part of one big picture.

• Fuels Independent Learning: Engaging topics encourage kids to ask deeper questions and seek out more knowledge.

The Perfect Collection For:

• Kids who have enjoyed and completed Bundles 1-3 and are ready for their next reading challenge.

• Building a home library that grows with your child’s expanding curiosity.

• Giving young readers the authentic vocabulary they need to understand and describe the world like a real scientist.

Want Digital Access for Your Tablet?
This collection is also available as the Digital Reader Library: Level 4 (1-Year Access), providing flexible, online reading through our platform.

Start with the right words. Grow a lifetime of understanding.