In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this project children practice the scientific method while playing with puffy paint.

Plants and light seem to be good buddies, but how far does the friendship really go?

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

This science fair project examines how seeds hitchhike on animals and clothing.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Test whether plants can grow without sunlight and water.

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?

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

This science fair project idea investigates whether air has mass and weight.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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.

This science fair project idea explores how length affects the weight a bridge can hold.

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

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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 fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!