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 teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

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.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

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

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.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

In this experiment we will be determining whether birds prefer certain colors of seed.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This science fair project idea explores whether white light can be separated into different colors.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Science fair project that determines whether mass and weight are the same or different.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.