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

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project idea produces consumable fresh water from salt water through desalination.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

Explore the negative and positive consequences of stereotypes.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

In this experiment, you will be making your own paper flashlight by conducting electricty with graphite.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Explore the belief in astrology as a predictive system.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

This science fair project idea identifies and understands adaptations in birds.

Word color association is just a fancy way to talk about the way we connect colors with words.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Discover whether people can distinguish what a person looks like just by listening to their voice.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This experiment will test whether people are better auditory or visual learners and if there is a link between gender and either of these learning types.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

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