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.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Invite your child to craft dream cloud magnets to display their hopes and visions for the future!

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

What's your problem? I'll show you my math if you show me yours! Critical thinking and computation skills are the focus of this strategic math card game.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This project examines whether people's taste perception is influenced by what they see.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea determines what household items are good conductors of electricity.

What better way to remember the achievements of past U.S. Presidents than with a game of memory!

In this activity, your child will explore what it means and how it feels to live in a community.

Encourage your child to memorize the items on the Seder plate and what they symbolize with this artsy activity.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

What could be more fun than doing sidewalk art? How about making your own colored sidewalk chalk!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

What better way to care for the earth than to create a Call to Action plan for the entire family?

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!