Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.