This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science project teaches students to classify different shapes of leaves.

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

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.

This experiment evaluates if personality affects the type of movies that people prefer.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

This science project researches the correlation between barometric pressure and wind velocity.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

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?

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

This project examines whether humans can intuitively grasp numeric values greater than three.

This science fair project idea discovers the average time it takes for a person to remember something completely.

Time to look at our faces! Are they symmetrical or asymmetrical? Find out in this science fair project idea.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!