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.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

This science fair project idea quantifies the effect of specific food sources on red worm (Eisenia foetida) livelihood.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

The project researches how lubricants affect the mechanical advantage of a pulley.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

This project examines the concentration of dissolved oxygen in water, with and without oil.

This project involves the programming and development of a 3D Rubik's Cube application using C++.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.