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.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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 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.

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.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

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.

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!

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

The purpose of this science fair project is to build a basic radio.

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