This science fair project idea investigates the difference in reaction times between boys and girls.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This science fair project idea explores whether color affects a person's emotional state.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Illustrate the importance of bicycle safety in this simple 5th grade science experiment. All you need to start are an egg, a Styrofoam ball, and rubber bands.

Children read a famous letter from the American Civil War, then write a response, in this thoughtful history activity.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

This simple experiment serves as an introduction to the greenhouse effect.

This science fair project idea examines whether boys and girls differ in reflexes.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

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

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

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.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Help your fifth grader create an art card that celebrates the enduring values of Passover.