Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Discover whether a metal will expand under hot water.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

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

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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.

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

This science fair project idea investigates how color affects temperature.

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

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

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

Find out whether putting something on top of a plant will inhibit its growth.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Discover how and which salt melts ice the quickest.

This science fair project idea explores whether white light can be separated into different colors.