In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

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

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

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

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

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

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

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

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

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

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

This surprisingly good glue recipe comes from common kitchen items.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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 child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

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.