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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

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

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

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.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

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.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

This science fair project idea experiments with spinning color wheels and optical illusions.

Introduce your child to science with something they see everyday--their shadow!

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.