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.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Kids conduct a simple science experiment to see if seeds can grow without soil in this simple kindergarten science activity.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

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.

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

Your child can use Styrofoam, green paint and toothpicks to create her own cactus plant sculpture.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

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!

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

Plant a mini herb garden and teach your child about science and nature.

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

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

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Allow your first grader to get his artwork outdoors this summer by letting him create a garden art box for his arts and crafts supplies.

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

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.