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Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

This project explores if people more easily distinguish between faces of people of their own race or ethnicity compared to those of other races or ethnicities.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

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?

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

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

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

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 plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.