Investigate which substances are most effective at removing salt from water.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

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

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.

Discover whether the color of text correlates with ease and speed of reading.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

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.

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

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.

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!

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

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

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

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.

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

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.

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