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

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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

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

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

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

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea produces sounds by creating vibrations using different objects.

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

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

This science fair project idea produces varying pitches of sound.

This science fair project idea explores whether talking to a plant will help it grow.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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