Baking Soda Volcano
Build a classic erupting volcano using a simple acid-base reaction.
Homemade Lava Lamp
Create a mesmerizing lava lamp effect with oil, water, and fizzing tablets.
Rainbow Milk Explosion
Watch colors dance across the surface of milk in a beautiful swirling display.
Classic Slime
Make stretchy, squishy slime with just a few household ingredients.
Oobleck (Non-Newtonian Fluid)
Make a substance that acts like both a solid and a liquid.
Egg Drop Challenge
Engineer a protective container so an egg survives a fall.
Invisible Ink Messages
Write secret messages that only appear when heated.
Static Electricity Butterfly
Make tissue paper butterfly wings flutter using static electricity.
Grow Your Own Crystals
Grow beautiful crystals from a super-saturated salt or sugar solution.
Walking Water Rainbow
Watch colored water travel between cups on its own.
Liquid Density Tower
Stack different liquids in layers to create a colorful density column.
Balloon Rocket
Launch a balloon along a string to demonstrate Newton's Third Law.
Rain Cloud in a Jar
Simulate rainfall by creating a cloud in a jar with shaving cream.
Magnetic Maze
Guide a paper clip through a maze using a magnet underneath.
Celery Water Transport
Watch celery stalks drink colored water to learn how plants transport nutrients.
Fizzy Sidewalk Paint
Make erupting paint that fizzes and bubbles as you create art.
Tornado in a Bottle
Create a spinning water vortex that looks like a tornado.
Rubber Egg (Naked Egg)
Dissolve an eggshell in vinegar to make a bouncy, translucent egg.
DIY Compass
Make a working compass using a needle, magnet, and water.
Straw Bridge Challenge
Build the strongest bridge possible using only straws and tape.
Salt & Ice Rescue
Use salt to melt through ice and rescue frozen toys.
Paper Helicopter
Build a spinning paper helicopter that demonstrates air resistance.
Solar Oven S'mores
Build a solar oven from a pizza box and cook s'mores with sunlight.
Marker Chromatography
Separate the hidden colors inside markers using paper chromatography.
Elephant Toothpaste
Create a massive foam eruption from a rapid decomposition reaction.
Floating Egg
Make an egg float by changing the density of water with salt.
Ziplock Bag Explosion
Create a safe 'explosion' using a sealed bag and a gas-producing reaction.
Ice Cube Fishing
Lift an ice cube out of water using only string and salt.
Disappearing Glass
Make glass seem to disappear by matching its refractive index with oil.
Seed Germination Lab
Observe seeds sprout in a transparent bag to see roots and shoots grow.
Mentos & Diet Soda Geyser
Create a spectacular soda fountain with Mentos candies.
Rainbow Reflections on Paper
Create iridescent rainbow effects on black paper using nail polish.
Working Lung Model
Build a model that demonstrates how your diaphragm helps you breathe.
Oil Spill Cleanup
Simulate an ocean oil spill and test different cleanup methods.
Aluminum Foil Penny Boat
Design a tinfoil boat that holds the most pennies before sinking.
Shadow Sundial
Build a working sundial and track how shadows change throughout the day.
Water Glass Rainbow
Split white light into a rainbow using water and a flashlight.
Parachute Drop Test
Test different parachute designs to see which falls the slowest.