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Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

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!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

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

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Determine which video game elevates the heart rate best and burns the most calories.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

This science fair project idea examines which type of insulation holds in the most heat.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Determine how we can separate the components of a solution

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea demonstrates how our fingers prune when in water.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

Determine how good we are at direct and indirect observation.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.