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This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Demonstrate if cooking destroys all bacteria that is present in raw meats such as salmonella.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

This adventurous art project will send kids on a scavenger hunt for fall materials they can use in their artwork. This craft also teaches kids about seasons.

Make these homemade shell fossils and introduce your child to the wonders of science!

This project examines whether humans can intuitively grasp numeric values greater than three.

This science fair project idea investigates how the shape of an object affects drag.

Make an edible play dough with your child to help her develop her sensory and motor skills.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Discover the wonders of simple clay by pressing flowers into a modeling medium!

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

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

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

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!