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.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

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.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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.

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.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This biodiversity project examines the biodiversity in your own backyard.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

This science experiment tests if dog saliva can really help heal wounds.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Do you think heat can affect a plant's growth rate?

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