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.

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.

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

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.

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

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

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.

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

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

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.

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

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.

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

Determine whether the application of Febreeze will lower the bacterial count.

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?

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.