Make a backbone model to explore human anatomy and life science.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project idea explores whether white light can be separated into different colors.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

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!

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.

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

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!