Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

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.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair 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!

Think about the adaptive utility of an important aspect of our physiology.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This experiment will explore how manipulating a graph of historical information might reveal new information about data.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

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

The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.