WHAT'S INSIDE: PHYSICAL SCIENCE

Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.
  • Acoustics
  • Chemistry
  • Electricity
  • Forensic Science
  • History of Physical Science
  • Magnetism
  • Math Concepts
  • Matter
  • Mechanics
  • Nuclear Science
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FEATURED: PHYSICAL SCIENCE

Americium, a radioactive chemical element. In pure form, it is a silvery metal. Americium does not occur in nature; it is artificially created.

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How Radiation Works

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How Lasers Work

Lasers are used in CD players, dental drills, eye surgery, and even tattoo removal. But what exactly is a laser? There are numerous types, but all lasers work basically the same way. Learn how they generate such concentrated beams of light.

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