If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

This fascinating science fair project explores eye color genotypes.

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

Determine how good we are at direct and indirect observation.

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

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

This science fair project idea provides evidence that air is everywhere and takes up space.

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

Science fair project that illustrates the properties of black holes in space.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

This easy at-home experiment is a great way to "see" science.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Cleaning can be a chore, but not with this sudsy experiment!

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

In this science fair project, students create their own miniature salt flats at home.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.