This section includes hands-on experiments aligned with RS4K books and chapters. To access an experiment, hover over the desired chapter and click to open a downloadable PDF.
Each PDF contains:
Student Experiment pages
Teacher instructions
For Books 1–6: 
You’ll find a quick experiment instruction page for students and matching guidance for teachers.
For Book 7 
Instructions are built into the student notebook pages, and the teacher’s guide includes tips for supporting more advanced learners.

• Chapter 1 - Liquid Showdown: Which Melts Ice Fastest?
• Chapter 2 - Adventures: Paper Cutting Challenge
• Chapter 5 - Blowing Up a Balloon with Baking Soda and Vinegar
• Chapter 7 - Life or Not? The Great Pet Rock Investigation
• Chapter 9 - Germ Quest: The Secret Life of Bacteria
• Chapter 11 - Squish and Smash: The Marshmallow Physics Experiment
• Chapter 12 - Launch Lab: Unleashing Paper Airplane Power
• Chapter 15 - Rock Quest: The Science of Stones and Minerals
• Chapter 17 - Quake and Shake: The Soil Jiggle Test (Home Edition)
• Chapter 21 - Hot and Cold in Space: Planet Temperature Quest

• Chapter 1 - Go Gadgets! Designing and Making Your Own Science Tools
• Chapter 3 - Acid or Base? The Litmus Paper Challenge
• Chapter 5 - Myth Buster Test: Can the Tongue Really Sense Different Tastes?
• Chapter 9 - Mold Patrol: Keeping the Fuzz Away
• Chapter 12 - Raceway Rumble: Testing Toy Cars on Various Surfaces
• Chapter 13 - Mission: Rescue the Moon Rover
• Chapter 17 - Breath Detectives: Discovering CO₂ with Limewater
• Chapter 19 - Night Sky Adventures: Mapping the Stars

• Chapter 3 - Cracking the Case of Mixed Dyes with Column Chromatography
• Chapter 4 - Cross-Linked Chaos: The Polymer Science of Slime
• Chapter 7 - Plant Power: Discovering What Makes Plants Grow
• Chapter 8 - From Roots to Leaves
• Chapter 12 - Part 1 - Power Circuit Parade: Pass the Electrons!
• Chapter 12 - Part 2 - Light It Up: DIY Paper Circuit Fun
• Chapter 14 - Raindrops: Simulating the Water Cycle
• Chapter 16 - Exploring Earth's Invisible Magnetic Field
• Chapter 19 - Milky Way Walkabout
• Chapter 22 - Nature's Recycler-Biology and Chemistry of the Compost Cycle

• Chapter 2 - The Electron Hotel
• Chapter 5 -  Hands-on-Heat: A Molecular Model of Energy Transfer
• Chapter 8 - Exploring Pill Bug and Sow Bug Behavior
• Chapter 11 - Water Music Board
• Chapter 12 - What Color is Your Atom?
• Chapter 14 - Cycle Spy Activity: Where did that Come From?
• Chapter 15 - Battle for the Ecosystem Game
• Chapter 16 - From Wind to Water to Watts
• Chapter 18: Search for an Exoplanet
• Chapter 20 - Tough Tardigrades : Space Survivors on a Slide

• Chapter 1 - Precision and Accuracy: The Great Liquid Lab
• Chapter 4 - Explaining Atoms to the People of Planet Atomis 
• Chapter 6, 7 & 8 - Cell Theory and the Definition of Life
• Chapter 9 - Battle of the Bacteria: Which Cleaner Will Win?
• Chapter 11 - The Mighty Motion: Forces at Work & Play!
• Chapter 12 - The Great Park-Cleanup Problem -- To Solve
• Chapter 15 - Mud Matters: The Science of Soil
• Chapter 19 - Tilted Tales: How Earth's Axis Creates Seasons
• Chapter 21: AI Joins the Mission to Map the Planets

• Chapter 1 - Future Creators: Navigating the World of TinkerCad and AR
• Chapter 3 - Indicator Investigators: The Magic of Red Cabbage!
• Chapter 4 - The Great pH Color Change Experiment
• Chapter 7 - Zoom In: Adventures with the Microscope
• Chapter 8 - Whirling Wonders: Exploring Protist Motion
• Chapter 11, 12, & 13 - Pendulums in Motion
• Chapter 16 & 17 - GeoExplorer Quest
• Astronomy - coming soon
• Astronomy - coming soon

• Chapter 2 - Using Atomic Clues to Predict Solubility
• Chapter 3 - The Science & Art of Being a Perfumer
• Chapter 5 - Which Fruit Has the Most DNA?
• Chapter 8 - How Botanical Researchers Study Plant Structures
• Chapter 12 & 13 - Build Your Own Electromagnet
• Chapter 15 - Walk Like an Environmental Ethologist
• Chapter 16 - Exploring the Magnetosphere Using a Compass
• Chapter 18 - Be a Galaxy Cartographer
• Chapter 20 - Looking for Black Holes