This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science fair project idea explores whether color affects a person's emotional state.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Discover whether a metal will expand under hot water.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

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

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

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

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea explores which fruit molds the fastest.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

This science fair project idea explores the different properties of matter.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This project explores ways to prevent static electrical shocks.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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