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.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

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

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

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.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

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!

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

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.

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

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?

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!