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.
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  • History of Physical Science
  • Magnetism
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Hydrogen Sulfide, a compound of hydrogen and sulfur. This highly poisonous gas has the odor of rotten eggs.

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Lead is one of the most maligned metals on the periodic table and for good reason. Lead poisoning is serious. But the beleaguered element isn't all bad, especially when it's protecting you from radiation.

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