This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

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

Engineers in training can get started with this simple wheel-and-axle construction activity.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

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

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Help your kindergarten science maven explore the water cycle without getting everything wet.

This science fair project idea explores the egg's thin membrane.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

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.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Discover whether a metal will expand under hot water.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

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