Science Terminology

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Across
  1. 2. The action of one object coming forcibly into contact with another.
  2. 4. A gas that it harmful to the ozone layer, typically used in refrigerators or aerosols
  3. 5. Known as the layers of gases surrounding a planet or other celestial body
  4. 7. The production and discharge of something, especially gas or radiation.
  5. 8. A liquid, gas, or electricity moving steadily and continuously in a current or stream.
  6. 9. liquid derived from petroleum, especially for use as a fuel or lubricant
Down
  1. 1. Energy that comes from a source and travels through space at the speed of light
  2. 3. A young tree, vine, shrub, or herb
  3. 4. A naturally abundant, nonmetallic element that occurs in all organic compounds
  4. 6. The upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles