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 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 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.

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

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.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

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!

Add some artsy fun to your child's next reading adventure by letting them draw the characters.

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

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

The next time you are planning a Mexican-inspired menu, let your child contribute with a batch of this guacamole! Here's how.

Create clever airplane favors for your child's next birthday party in this fun third grade arts and crafts activity.

No need to head to the toy store for her next stuffed animal once she has the skills to create her own!

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

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

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.

Make a friendship bracelet with your child this Mother's Day or the next time they are looking for a fun project to do!

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Next time your child says he's bored, suggest a game of Toe Fencing! It's a silly and physical game that can be played anywhere, any time.

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!