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Students design and create their own air-powered rockets, in this hands-on activity.

In this activity, learners design, build and test a model suspension bridge for sturdiness and strength.

In this project, students explore how levers work, by making a puppet with moving limbs.

In this activity (on pages 12-15), learners make a crater model and test the effects of weather (rain) on its surface.

In this design challenge, learners build a boat that paddles itself using a rubber band as its power source.

In this hands-on activity, learners use the steps of the design process to create a hook to rescue a "space capsule" from the water.

In this design challenge activity, learners build a tower that’s at least 12 inches high with two or more parts that move (spin, sway, or flap) in the wind.

In this activity, learners will build a roller coaster for a marble to run on using everyday household materials such as paper towel or toilet paper rolls, cups, boxes, books, buckets, chairs, etc.

In this activity, learners design wind-powered cars out of simple household materials. Students have fun designing and then racing their vehicles around the room.

In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.

In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

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