In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Here's one way to recycle: turn a tuna can into a mini barbecue and teach your child the power of resourcefulness!

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Is your child struggling with the principles of magnetism? Here's a fun activity to demonstrate polarity and understand the basic principles of magnetism.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

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.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

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

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

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.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

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.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

How powerful is the reaction between baking soda and vinegar? Find out here!

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.

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

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