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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!

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

In this science fair project, students evaluate if the phases of the moon affect the way people feel.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

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

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

Learn about the factors that influence group conformity.

Determine which material produces the strongest static charge.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

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

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

The goal of this science fair project is to identify the galactic center of the milky way using globular clusters, as found through Google Earth.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.