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This science fair project idea determines the most effective method of preserving food.

This science fair project idea produces varying pitches of sound.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

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

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.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

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

This activity allows your kindergartener to translate what they observe into a beautiful poem.

Here's a science activity to help your child investigate how seeds are designed to travel.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea examines whether boys and girls differ in reflexes.

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.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

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

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?

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.