Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Give your budding young observers a chance to discover simple machines at use in their own home.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Teach your child how butter is created by shaking up cream the old-fashioned way.

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

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea determines which method of hand cleansing is the most effective.

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea produces sounds by creating vibrations using different objects.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

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

Take a dive into the candy jar with this yummy science experiment.