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.

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

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

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Have you or your child ever heard that nursery rhyme and wondered just what curds and whey are anyway? Do this simple experiment together to find out!

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

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

An home science experiment for older students that teaches about the science behind heat.

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

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

This experiment investigates whether there are certain sounds that affect men and women differently

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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

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

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!

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.