Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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

This science fair project idea experiments with spinning color wheels and optical illusions.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

The goal of this project is to create an exciting topographical map out of dough.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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 project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.