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

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

Test whether plants can grow without sunlight and water.

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

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

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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.

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!

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.

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.

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.

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This project determines what category of person is most likely to be ticklish.

This science fair project examines how seeds hitchhike on animals and clothing.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This project examines whether people's taste perception is influenced by what they see.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

This science fair project teaches students the differences between fruits and vegetables.

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

This science fair project idea investigates if fats add to the flavor of food.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Is it a square or a circle? See if you can trick your friends with this zany science project!