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In this activity, challenge learners to keep an ice cube from completely melting in 30 minutes. Learners engineer a box or wrap to prevent an ice cube from melting.

In this activity, learners will test the strength of different brands of paper towels.

In this engineering activity (page 2 of PDF), young learners investigate how a wide base can make a building more stable. Learners use blocks or boxes of different sizes to construct stable towers.

In this engineering activity (page 3 of PDF), young learners investigate how a pole can be made stable by “planting” its base in the ground or adding supports to the base.

In this activity, learners design a bungee jump for an egg using nylon stockings.

In this activity, learners will engineer three different parachutes to test how well each one works.

In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch.

In this activity, learners build small animated toys that move.

In this activity, challenge learners to design a roller coaster ride for a marble using cardboard and other simple materials.

In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

In this activity, learners design a therapeutic agent to image and/or cure various diseases in the respiratory system.