Physics does not have to feel hard or boring. The best way for kids to understand physics is by seeing it happen. These fun and easy physics experiments use simple materials, take only a few minutes, and explain big ideas in a way kids actually remember.
Perfect for home, classrooms, and school projects.
1. Floating Egg Experiment
Place an egg in plain water and watch it sink. Add salt and see it float.
This shows density and why objects float or sink.
2. Balloon Rocket
Thread a string through a straw, attach a balloon, and let it go.
Kids learn about action and reaction forces.
3. Paper Helicopter
Drop a paper helicopter from a height and watch it spin.
This demonstrates air resistance.
4. Coin Inertia Trick
Place a coin on a card over a glass and flick the card.
The coin drops straight down due to inertia.
5. Magnet Maze
Guide a paper clip through a maze using a magnet underneath.
Teaches magnetic force.
6. Walking Water
Place paper towels between cups of colored water.
Shows capillary action.
7. Static Electricity Butterfly
Rub a balloon and lift tissue paper shapes.
Kids see static electricity in action.
8. Homemade Compass
Float a magnetized needle on water.
Explains Earth’s magnetic field.
9. Sound Vibrations With Rice
Sprinkle rice on a drum or plastic wrap and tap it.
Demonstrates sound waves.
10. Bending Light With Water
Put a pencil in a glass of water and observe the bend.
This shows refraction of light.
11. Gravity Drop Test
Drop two objects of different weights at the same time.
Kids learn how gravity affects all objects equally.
12. Balloon Static Wall Stick
Rub a balloon and stick it to a wall.
Shows electrostatic attraction.
13. Paper Bridge Challenge
Build a bridge with paper that holds coins.
Explains strength and force distribution.
14. Spinning Egg Test
Spin a raw egg and a boiled egg.
Teaches angular momentum.
15. Shadow Size Experiment
Move a toy closer and farther from a light source.
Shows how light travels in straight lines.
16. Marble Speed Race
Roll marbles down ramps of different heights.
Kids explore speed and gravity.
17. Rubber Band Guitar
Stretch rubber bands over a box and pluck them.
Demonstrates pitch and vibration.
18. Bottle Air Pressure Test
Invert a bottle with holes and cover the top.
Shows how air pressure controls water flow.
19. Mirror Writing
Write words and read them using a mirror.
Explains reflection.
20. Pendulum Swing
Tie a weight to a string and swing it.
Kids learn about motion and timing.
21. Floating Soap Boat
Add soap behind a paper boat on water.
Demonstrates surface tension.
22. Straw Sound Experiment
Cut straws to different lengths and blow through them.
Shows how length affects sound.
23. Light Through Objects
Test which objects block or pass light.
Explains transparent, translucent, and opaque materials.
24. Rolling Can Mystery
Roll a can with rubber bands inside.
Demonstrates stored energy.
25. Water Bottle Tornado
Spin water in a bottle to create a vortex.
Kids see circular motion.
26. Jumping Paper Fish
Use static electricity to make paper shapes move.
Explains electric charges.
27. Coin Balance Challenge
Stack coins in surprising ways.
Teaches center of gravity.
28. Ice Cube Melting Race
Test which surface melts ice fastest.
Shows heat transfer.
29. Balloon and Flame Test
Hold a water-filled balloon over a flame.
Explains heat absorption.
30. Wind Power Pinwheel
Build a paper pinwheel and blow on it.
Kids learn how wind energy creates motion.
Conclusion
Physics becomes easy for kids when learning feels like play. These fun and easy physics experiments for kids use simple materials to explain real scientific ideas in a way children can see and understand. By trying hands-on physics activities at home or in the classroom, kids build curiosity, confidence, and problem-solving skills naturally. Whether for school projects, STEM learning, or weekend fun, these simple physics experiments help children enjoy science while learning how the world works.