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.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

Set your teen on the beat in a real world "crime scene" investigation. Can he tell whose fingerprints are on a drinking glass?

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Teach your preschooler some physics that she can relate to with this fun and simple activity!

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

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

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Investigate which substances are most effective at removing salt from water.

Make a spring collage with your child to get them outside and those creative juices flowing!

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

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

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

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

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