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

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 science fair project investigates why the number of visible stars changes from place to place.

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.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Is your child a young ornithologist in the making?

In this experiment we will be determining whether birds prefer certain colors of seed.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Cleaning can be a chore, but not with this sudsy experiment!

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!