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

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

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

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.

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

Learn with makes water molecules work with this fun and easy science activity!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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.

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

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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?

Try this chemistry experiment with your curious kid and get some "shocking" results!

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

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Give your budding young observers a chance to discover simple machines at use in their own home.

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