This science fair project idea determines which flower lasts the longest.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

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

This science experiment tests if dog saliva can really help heal wounds.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

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

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

Science fair project that explains and demonstrates the parallax principle.

Make a lei and bring a touch of the tropical lifestyle into your home!

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

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

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

Try this chemistry experiment with your curious kid and get some "shocking" results!

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

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