By type · 35 ideas Little Experiments
Kitchen science that ends with “Again!”
Baking Soda Volcano25 min · 3–10 years
Dancing Raisins10 min · 3–9 years
Walking Water Rainbow15 min · 3–10 years
Magic Milk10 min · 3–10 years
Sink or Float?20 min · 3–7 years
Homemade Lava Lamp15 min · 4–12 years
Pepper and Soap Trick5 min · 3–9 years
Invisible Ink25 min · 5–12 years
Oobleck: Solid or Liquid?20 min · 3–12 years
Bean in a Jar15 min · 3–10 years
Self-Inflating Balloon10 min · 4–10 years
Balloon Rocket20 min · 4–12 years
Bouncy Egg10 min · 5–12 years
Salt Crystal Garden20 min · 5–12 years
Rain Cloud in a Jar15 min · 3–8 years
Color-Changing Flowers15 min · 4–10 years
Magnet Fishing20 min · 3–7 years
Glowing Dough Circuits40 min · 8–12 years
Craft-Stick Catapult30 min · 6–12 years
Paper Bridge Challenge30 min · 6–12 years
Egg Drop Challenge60 min · 7–12 years
Sundial30 min · 6–12 years
Fingerprint Detective20 min · 5–12 years
Sugar Density Rainbow25 min · 7–12 years
Newton’s Color Spinner20 min · 6–12 years
Floating Needle Compass20 min · 7–12 years
Cress Heads15 min · 3–10 years
Toy Parachute Test25 min · 5–12 years
Binary Bead Bracelets25 min · 7–12 years
Program Your Parent Robot15 min · 4–10 years
Frozen Treasure Dig30 min · 3–8 years
Pinhole Viewer40 min · 8–12 years
Fizzing Bag Pop15 min · 5–10 years
Drops on a Coin10 min · 5–12 years
Rubber-Band Paddle Boat40 min · 7–12 years
Play it with Hopsa
300+ ideas like this one, matched to your kids’ ages, your mood and your energy. Today’s idea in 10 seconds.
Join the waitlist
Coming soon to the App Store and Google Play