This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science research project challenges students to think of more effective lobster farming methods.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

This science fair project idea produces varying pitches of sound.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Science fair project that determines whether mass and weight are the same or different.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea investigates whether plants can survive being frozen.

Find out whether matte or shiny nail polish lasts longer.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Find out whether putting something on top of a plant will inhibit its growth.

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

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Discover whether a metal will expand under hot water.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

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