What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This science fair project idea determines whether the hand a person writes with relates to which side they will choose from in a fake taste test.

Start your toy engines -- this is going to be a fast and friction-filled race!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

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

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

This science fair project idea experiments with unusual ideas in fashion design and the development of eco-friendly fashion products.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

In this science project, learn about soil porosity and measure the percent porosity of sand, silt, and clay.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

In this project children practice the scientific method while playing with puffy paint.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

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

Show your preschooler how to create a simple windsock using a colorful piece of tissue paper, a pipe cleaner, and yarn.

In this fun activity, kids practice measurement and boost fine motor skills as they learn all about how fossils form and even make a few of their own!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This surprisingly good glue recipe comes from common kitchen items.

This experiment will explore the possibility of creating an infinite object by hand.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.