This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea investigates how the shape of an object affects drag.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project idea explores substances that cause a bubble to last longer.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

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.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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!

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.