This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

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

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Take a dive into the candy jar with this yummy science experiment.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

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

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

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

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

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

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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

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

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project idea determines the most effective method of preserving food.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

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

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

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.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This project examines what types of objects burn and which burn faster and cleaner.

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

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.