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What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Determine which metal has the highest rate of conductivity.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

These cute holly-shaped hair clips are a breeze to make for holiday celebrations. They make a great party activity, too!

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

This science fair project idea determines which flower lasts the longest.

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!

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

This science fair project investigates how temperature of a room affects the burn rate of a candle.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

This science fair project idea discovers the effect of (high) heat on animal cells.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

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.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

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.