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.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science project allows students to study the psychology of happiness.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

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.

Here's a pressed leaf card project that puts science and writing together for your second grader.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

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

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This project determines what category of person is most likely to be ticklish.

Your preschooler is familiar with the colors in their crayon box, but can they find these colors in the world? Take them on a scavenger hunt to find out!

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.