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.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

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.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.