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.

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

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

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.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

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

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.

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.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?

Does fear cause the same physiologic responses in men and women? This experiment measures people's blood pressure and heart rate while watching a scary movie.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

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

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

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

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 second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

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

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

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 science fair project idea explores substances that cause a bubble to last longer.

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?