In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

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

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

In this science fair project, students use the streak test to tell minerals apart from each other.

In this experiment you will replicate the mummification process by making a hot dog mummy.

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.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

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

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Start your toy engines -- this is going to be a fast and friction-filled race!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

This science fair project teaches students about wilting and browning of salad greens.