Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This biodiversity project examines the biodiversity in your own backyard.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

This science fair project idea explores substances that cause a bubble to last longer.

Determine if gender affects the ability to identify different smells.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project idea examines the reason boats are shaped and engineered.

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

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.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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!

Start your toy engines -- this is going to be a fast and friction-filled race!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!