The launched the first artificial satellite into orbit around the
and marked the beginning of a new age in solar system science.
in 1957. This satellite was known as Sputnik
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Use examples from the article to explain one positive and one negative effect that chemistry has had on society

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Condensation happens when water vapor cools. true or false? ?