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.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This biodiversity project examines the biodiversity in your own backyard.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

In this activity your child will create their very own marble maze!

This science fair project idea examines whether boys and girls differ in reflexes.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this science fair project, students create their own miniature salt flats at home.

Find out which kind of bubble wrap fares best when put in impact.

Learn how different types of soil affect how animal tracks form in this experiment!

In this experiment we will be determining whether birds prefer certain colors of seed.

In this fun experiment, we'll find out how color affects heat absorption!

In this science fair project, students make their own rain gauge to measure rainfall.

In this project students experiment with making music using only glasses of water.

This science fair project idea examines which type of insulation holds in the most heat.

In this project children practice the scientific method while playing with puffy paint.

In this experiment you will replicate the mummification process by making a hot dog mummy.

In this design challenge, your child will make a bottle rocket using typical household items.

This science fair project idea investigates the difference in reaction times between boys and girls.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this activity, your child will be challenged to make a tower using paper cups.