This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

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

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This science fair project idea explores the different properties & interactions of sugar molecules.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

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

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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

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.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science 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.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

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.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

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

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.