This science fair project investigates why the number of visible stars changes from place to place.

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

This science fair project teaches students about wilting and browning of salad greens.

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

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Discover which fabrics shrink the most in the wash and why.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

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.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

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

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.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Make a spring collage with your child to get them outside and those creative juices flowing!

In this fun experiment, we'll find out how color affects heat absorption!

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project idea identifies clouds as a means of predicting the weather.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.