Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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?

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

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.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

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.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

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

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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.