Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea investigates whether plants can survive being frozen.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project idea determines if the color of light affects the growth of plants.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

This science fair project idea examines liquids of different densities.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Test whether plants can grow without sunlight and water.

How do organic materials become soil? This science experiment measures what materials biodegrade.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

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

In this science fair project, students make their own rain gauge to measure rainfall.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Find out whether putting something on top of a plant will inhibit its growth.

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

This project determines what category of person is most likely to be ticklish.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!