In this science fair project, young children discover what happens when two fluids that have different densities get together.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

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

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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!