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

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

This science fair project idea produces consumable fresh water from salt water through desalination.

Science fair project that determines which foods and drinks contain the highest amount of glucose.

This science fair project compares the abilities of men and women to understand subtle communication through body language.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This simple experiment serves as an introduction to the greenhouse effect.

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

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

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

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this science fair project, students examine how temperature affects sugar transport within a plant.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

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 focuses on the production of oxygen by plants during the photosynthesis process.

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

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

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?

Construct and experiment with a periscope using reflected light rays to gather an image.