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This science fair project idea compares the mass and density of objects.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

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, students examine how the flow rate in a stream affects the growth of aquatic plants.

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.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Determine which metal has the highest rate of conductivity.