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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The goal of this project is to create an exciting topographical map out of dough.

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

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

In this science fair project, students create their own miniature salt flats at home.

In this science fair project, students make their own rain gauge to measure rainfall.

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.

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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

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 idea observes products available in the school cafeteria and waste produced by these products.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.