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activities that help the environment
Baking Soda Bubbles
Butter
Cabbage Juice Indicator
Cauldron Bubbles
Color Splash
Color Symphony
Fatty Foods
Glue
Plastic Milk
Polishing Pennies
Recycling Paper
NEW!
Saltwater Tester
NEW!
Yeast
Yeast, Part II
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Balloon Blast-Off
Balloon Brain
Balls and Ramp
Bubble-Blowing Machine
Bubble City
Build a Tent
NEW!
Bungee Jump
Cereal Dispenser
Coat Hanger Invention
Coin Sorter
Deliver a Message
NEW!
Door Alarm
Door Opener
Egg Boat
Egg Drop
Electrical Messages
FIRST LEGO® League
Flashlight
NEW!
Flinker
Flinker II
Food Elevator
NEW!
Future City
Game Timer
Heat Saving Device
Heavy Moving
Hovercraft
Junk Boats
Keep-a-Cube
Marble Maze
Mechanical Grabber
NEW!
Mirror Maze
Naked Egg Drop
Parachute
Pencil Balance
Puff-mobile
Puff-mobile II
Rock No Roll
Roller Coaster
Rube Goldberg™ Invention
Rube Goldberg™ Invention II
Secret Candy Safe
Seismometer
Ski Boat Air Jet
Sneaker Launcher
NEW!
Solar Cookers
Steady Tray
NEW!
Stick-o-Meter
Survival Raft
NEW!
Tennis Ball Lift
Water Filter
Water Filter Part II
NEW!
You Can't Get There from Here
ZOOM Egg Vehicle
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Arrows Optical Illusion
Blind Spot
Clapping? Where?
Penny Cup Game
Peripheral Vision
Periscope
NEW!
Phenakistascope
Reaction Time
Sensitivity Tester
Taste V. Smell
Tongue Map
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Air Lift
Alter The Rocket
Balloon and Straw
Balloon Boat
Balloon Car
Can Car
Chain Reaction Machine
Cotton Ball Catapult
Daredevil Ball Jump
Daredevil Ball Jump II
Delta Wing Flyer
Electric Gelatin
Electroscope
Film Canister Rocket
Funnel Lift
Glider
Hot Air Balloon
Lemon Battery
Lemon Battery II
Lemon Juice Rockets
Lemon Juice Rockets II
Measuring Boat Speed
NEW!
Moving Cans
Paper Clip and Keys
Pendulum Challenge
Pet Can
Salt Pendulum
Snap, Crackle, Jump
Soda Bottle Boat
Spool Racer
Static Electricity
Steadiness Tester
Submarine Race
Sweet Spot
Tops
Tower of Coins
Transport
Waterwheel
Windmills
ZOOM Vehicle
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Biodome
Biome in a Baggie
Bird Feeder
Coloring Flowers
Compost
Counting Bugs
Drinking Straw Pulse Measurer
Germinator
Moldy Soup
Mystery Seeds
Potato Maze
Sock Seeds
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Barometer
Consecutive Numbers
Doorman's Code
Fingerprints
NEW!
Guess My Rule
Mirror Messages
NEW!
Paper Towel Chromatography
NEW!
Scytale Messages
NEW!
Shower Estimation
NEW!
Snowflake
Squares and Rectangles
Square Walk
Tangram
Tongue Rollers
Tooth Decay
Toothpick Challenge
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Bottle Hit and Blow
Glass Xylophone
Glass Xylophone Part II
Guitar
Stereo Hanger
Straw Kazoo
String Telephone
Super Sounding Drums
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Arch
Balloon Columns
Bird's Nests
Boats Afloat
Build a Dam
Cantilever
Columns
Crazy Straw Bridge
Cup Tower
Financial Support
Geodesic Dome
Gumdrop Dome
Marshmallow Tower
Newspaper Chair
Paper Bridge
Paper Cup Walk
Paper Cup Walk II
Paper Tower
Playing Card Structure
Straw Bridge
Straw Tower
Strongest Shape
Super Golf Tower
Suspension Bridge
Tall, Sturdy Building
Toothpick Bridge
Upside-Down Mobile
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Dancing Raisins
Dancing Raisins II
Drops on Pennies
Drops on Pennies II
Floating Paper Clips
Make An Egg Float
Pennies And Water
Soap-Powered Boat II
Solar Still
NEW!
Thermometer
Water Density
Water on a String
What's More Dense?
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Baking Soda Bubbles
Can you keep bubbles from popping?