Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This science fair project idea examines the reason boats are shaped and engineered.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Cleaning can be a chore, but not with this sudsy experiment!

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.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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 the egg's thin membrane.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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 explores how the shape of a boat affects its density and how much weight it can float.

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

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.