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.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

This science fair project aims to examine the nature of pi and analyze other properties and values related to circles, such as radius, diameter

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

This experiment will explore how manipulating a graph of historical information might reveal new information about data.

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

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

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

This experiment will explore if a randomly iterated algorithm will result in a pattern.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

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

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

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

Test whether cutting up meats will make it cook faster than just cooking it whole.

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

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

This experiment will explore whether fractals really repeat themselves infinitely.

This experiment will explore if and where fractals can be found in the natural world.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Science fair project that illustrates the properties of black holes in space.

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This project involves the development of a website using free software online to promote the value of science.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Discover which fabrics shrink the most in the wash and why.