This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea determines the probability of a coin landing heads or tails.

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

This science fair project idea explores whether talking to a plant will help it grow.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

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.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Science fair project that determines whether mass and weight are the same or different.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.