In this science fair project, students use the streak test to tell minerals apart from each other.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

This science fair project idea investigates the hardness property of minerals.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Test whether plants can grow without sunlight and water.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

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 teaches about mold. Students will test different foods to see which grow mold the fastest.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This science experiment has students test whether a snail moves faster on concrete or dirt.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

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!

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

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.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

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.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.