An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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

This science fair project idea produces varying pitches of sound.

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

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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

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

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

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

Making your own glass cleaner is easy, effective and inexpensive!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

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

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

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

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

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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

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

In this fun activity, your child will create their very own solar oven to bake s'mores!