Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

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

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

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!

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This science fair project idea explores the different properties & interactions of sugar molecules.