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

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

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

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

Help your child celebrate the summer and the sun by making a sandy seascape.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

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

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Give your child a chance to experiment with how things grow. And throw in something extra to up the fun factor even more...her very own grass pet!

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science project investigates the influence of different genres of movies on appetite.

This experiment evaluates whether a person's eye color affects their ability to identify colors in low light.

This project explores whether music affects the growth and health of plants.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

Investigate which substances are most effective at removing salt from water.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Do suds equal more clean or does a sud-free cleaning agent works just as well or even better?