This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

Thousands of witches that come out to celebrate Halloween. Now, your child can make her very own self-standing witch.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Do you think heat can affect a plant's growth rate?

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

To help your child learn how to use a thermometer, try this temperature collecting activity at home.