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Everything in the universe is comprised of matter. Check out these articles for a better understanding of matter and how it affects you.

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How Atoms Work

What exactly is an atom? What is it made of? What does it look like? The pursuit of the structure of the atom has married many areas of chemistry and physics in perhaps one of the greatest contributions of modern science!


How Controlled Burns Work

 How Controlled Burns Work

How effective is fighting a wildfire with controlled fire? Learn all about controlled burns at HowStuffWorks. See more »

How many atoms are in a person?

 How many atoms are in a person?

Atoms: the building blocks of life and the universe. How many atoms are in a person? Find out at HowStuffWorks. See more »

 What is a wavelength?

Wavelengths are used to measure the size of a wave. Learn about wavelengths in this article. See more »

 What are the basic structure and the atomic number of an atom?

The basic structure of an atom is made up of neutrons, protons and electrons, and its atomic number is calculated by adding up the number of protons and neutrons in the atom's nucleus. Learn about the basic structure and the atomic number of an atom in this article. See more »

 How does the photoelectric effect support the particle theory of light?

Your eyes can only perceive things in the presence of light. Learn how the photoelectric effect supports the particle theory of light in this article. See more »

How Atoms Work

 How Atoms Work

Atoms are in your body, the chair you are sitting in, your desk and even in the air. Learn about the particles that make the universe possible. See more »