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Showing results 21 to 39 of 39
   
The Awesome Game Race
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  In this engineering activity, learners design their own board games.
   
Paddle Power
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  In this design challenge, learners build a boat that paddles itself using a rubber band as its power source.
   
Kick Stick Challenge
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  In this design challenge activity, learners investigate series circuits and motors to build a hand-held "kick stick." Their goal is create a battery-operated device that sends a Ping-Pong ball across 
   
Electric Gamebox Challenge
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  In this design challenge activity, learners invent a pinball-like game where a kick stick hits a ping pong ball into a target that buzzes.
   
Rubber Band Car
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  In this design challenge activity, learners build a car that can travel at least four feet using rubber band power and use the design process to debug problems.
   
All Wound Up
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  In this activity, learners build a racecar using only a rubber band, spool, straw, and paper clip! This racer is a classic toy that zips across a flat surface.
   
Toy Chemistry
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  In this playful, goopy activity, learners mix two liquids to create a solid (that sometimes acts like a liquid ), using basic household materials such as borax and glue.
   
Motorized Car
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  In this design challenge activity, learners build a car that uses a battery-operated motor to "drive" at least ten feet.
   
Crank It Up
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  In this engineering activity, learners explore simple machines and then build cardboard automata using cams.
   
Set It Straight
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  In this activity, learners build a simple tabletop seesaw to test how different variables (the position of the fulcrum, distance, weight) affect its balance under increasing weight loads.
   
How to Learn Basic Shapes by Making a Shape Mobile
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  In this activity, caregivers and young learners work together to craft and talk about shapes and relative positions of such shapes by creating a mobile.
   
Get-Moving Game
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  In this invention challenge activity, learners create an indoor game for one or two people that gets you moving.
   
Exploring Structures
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  This event guide features three related explorations in which learners investigate the following science concepts: how you design and build a structure helps determine how strong it will be; different
   
Scytale Messages
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  In this activity, learners use a soda can to decode a secret message. Learners wrap scytale (pronounced ski-tally) code around a can and challenge friends to see if they can crack the codes.
   
Extreme Kicking Machine
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  In this design challenge activity follow up to "Kicking Machine", learners add a hands-free feature to their Kicking Machine.
   
Eye Spy
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  This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.
   
Action Figure
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  In this project, students explore how levers work, by making a puppet with moving limbs.
   
Zipline
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  In this design activity, learners create a vehicle that can transport a load, like a favorite toy or as a recycled object, from the top of a zipline to the bottom using only gravity.
   
Thaumatrope
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  In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.
  