Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

This science fair project idea produces sounds by creating vibrations using different objects.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

This science fair project idea determines which method of hand cleansing is the most effective.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

Wild-type and GAPDH mutant Caenorhabditis elegans were used as an example of how glucose or sugar affects the lifespan of humans.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

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

This experiment will examine and precisely measure the amount of sugar in various sodas.

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.

Help your preschooler craft a homemade wind spinning device--a surefire to make your backyard sparkle, and teach her a bit about weather!

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Make a spring collage with your child to get them outside and those creative juices flowing!

This science fair project idea explores which is better for diffusion and cell absorbing, more surface area, or more volume.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

Here's a simple science activity that will help your child better understand how wells bring us water.