Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Help your child celebrate the summer and the sun by making a sandy seascape.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Science fair project that examines condensation and the conditions needed in order for dew to form.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

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.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Is it a square or a circle? See if you can trick your friends with this zany science project!

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!