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Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project idea investigates how color affects temperature.

This science fair project idea determines which method of hand cleansing is the most effective.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

This science fair project idea determines what household items are good conductors of electricity.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

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

This science fair project idea determines what household items are good conductors of electricity.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

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

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

This science fair project idea experiments with spinning color wheels and optical illusions.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.