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.

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

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.

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.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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

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

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

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.

Make a backbone model to explore human anatomy and life science.

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 experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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

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.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

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

Learn about this simple machine and make a pulley of your own to use for fun science trials.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea compares biodiversity between drops of water.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.