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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.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

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

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.

This science fair project idea determines how your body responds to allergies.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

In this science fair project, students investigate how different colors influence appetite.

This project will explore whether music influences physical endurance.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

This science fair project idea explores how far the average human can see.

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

Find out whether matching resonant frequencies can cause objects to shatter.