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In this design challenge activity, learners use a balloon and other simple materials to design an air-powered rocket that can hit a distant target.

In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.

In this activity, learners create painting machines that can paint moving forwards and backwards.

In this activity, learners construct wands that play different notes depending on information from light sensors programmed via a PICO Cricket.

In this Bob the Builder(TM)-themed activity, learners explore what it means to work together as a team.

In this activity, learners construct three optical illusion toys to examine how our brains play tricks on what we see.

In this activity (page 1 of PDF under SciGirls Activity: Forecasting), learners will construct an air cannon by cutting a hole in the bottom of a bucket and stretching a garbage bag over the other end

In this activity, learners will create their own percussion instrument with recycled materials. Learners will explore design, fabrication, cause and effect and sound through this activity.

In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.