This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

Explore how you can achieve magnetic levitation with the Meissner Effect! This cool science project explains formation and applications of a superconductor.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

This science fair project idea designs safe bicycle routes using GPS.

This science fair project idea produces sounds by creating vibrations using different objects.

Science fair project that creates fog using bottles of hot and cold water.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

Show your preschooler how to create a simple windsock using a colorful piece of tissue paper, a pipe cleaner, and yarn.