In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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

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

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

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.

This science project teaches students to classify different shapes of leaves.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Using a toy race car kids create a visual model of the Doppler Effect.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

In this project children practice the scientific method while playing with puffy paint.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project idea compares biodiversity between drops of water.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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.