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

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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.

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.

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This project investigates the affect of storage temperature on microwave popcorn.

Test whether plants can grow without sunlight and water.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea explores how length affects the weight a bridge can hold.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Here's a pressed leaf card project that puts science and writing together for your second grader.

This surprisingly good glue recipe comes from common kitchen items.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Have your child kick off their summer vacation by making a miniature water slide!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Is your child a young ornithologist in the making?

This science fair project idea investigates which objects float and sink in honey, water, and oil.