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Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

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

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

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!

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

This science fair project idea examines if there is a reason that musical notes are at the pitches they are.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

This project examines the concentration of dissolved oxygen in water, with and without oil.

This experiment investigate whether children in different age groups learn better from a computer program or a human teacher.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Does "short circuit" mean that electricity takes a short course? This science experiment provides steps to help you get to the bottom of this science mystery.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

The objective of this sociologically-inclined experiment is to evaluate whether kids' toy preferences are hardwired or develop as they grow.