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In this design challenge, learners will use microbes to design and grow a custom biomaterial at home and make something creative with it.

In this engineering activity, learners explore simple machines and then build cardboard automata using cams.

In this activity, learners build a simple solar oven out of household materials to melt chocolate and marshmallow between graham crackers--known as s'mores.

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