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

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

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

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

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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?

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!

Practice measurement using centimeters in this fun math race designed for your second grade student!

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

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

Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.