WHAT'S INSIDE: CHEMISTRY

Chemistry is the science of matter and the changes it undergoes during chemical reactions. In this section, learn about everyday chemistry, from chlorine beach to helium, and even why chocolate turns gray.
  • Chemical Elements
  • Chemical Compounds
  • Chemical Processes and Tests
FEATURED: CHEMISTRY
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If you were to touch dry ice, it wouldn't be anything like touching water ice. So what's it like? Is it hot or cold? And would it leave a mark?

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