Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

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.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

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

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This project investigates whether chewing gum can help a majority of people with focus and concentration.

This experiment investigates if small changes in your diet can alter your basal body temperature.

Students identify variables that affect the duration of high school romances and analyze data to predict the success or failure of ongoing relationships.

This project examines how temperature affects the volume of gas in balloons.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This project explores differences in people's reactions to images in color and images in black and white.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

This project explores whether music affects the growth and health of plants.

This experiment evaluates whether a person's eye color affects their ability to identify colors in low light.