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.

This science fair project idea produces varying pitches of sound.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This science fair project idea investigates the difference in reaction times between boys and girls.

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

This science fair project teaches students about wilting and browning of salad greens.

In this project, a mnemonic is used to test how it increases memory.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Construct and experiment with a periscope using reflected light rays to gather an image.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

The purpose of this science fair project is to build a basic radio.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

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

This science fair project idea examines the reason boats are shaped and engineered.