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

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Will the shape of an ice cube impact how fast the ice melts?

Using plants and other items from the outdoors and clothing they already own, your kids can dress up as any one of the four seasons or simply as a Garden.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

In this activity your child will create their very own marble maze!

This experiment will explore how manipulating a graph of historical information might reveal new information about data.

What better way to nurture your child's imagination than by making a fairy house out of materials found in nature!

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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 science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

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

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This experiment will investigate whether reward or punishment is more apt to motivate people.

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.

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

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.