This science project allows students to study the psychology of happiness.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

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

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.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

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?

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.

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.

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.

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.

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.

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

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

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