Science Vocabulary Puzzle

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Across
  1. 2. Star - A pulsar star that collapsed under gravity to the point where all itʻs particles are neutrons.
  2. 4. Weathering - Occurs when rocks are chemically broken down or dissolved by substances in the environment.
  3. 6. - The top limit of the mesosphere.
  4. 9. weathering - Occurs when living things mechanically break down rocks and minerals.
  5. 10. - The longest sequence of a stars life cycle.
  6. 14. - Top limit of the stratosphere.
  7. 15. Giant - A large reddish star late in itʻs life.
  8. 16. Bang - Occurred 15 billion years ago and is said to have created our universe.
  9. 18. - A gigantic explosion in which a massive blue star collapses.
Down
  1. 1. Pressure - The pressure exerted by the weight of air.
  2. 3. - A measure of how warm or cold the atmosphere is.
  3. 5. - When precipitation falls to the ground and flows over land.
  4. 7. - When liquid water turns into water vapor.
  5. 8. - The breakdown or dissolution of minerals and/or rocks on Earth.
  6. 11. weathering - Occurs when natural forces such as wind, water and temperature change mechanically crumble or break down into smaller pieces.
  7. 12. Cycle - The continuous movement of water from sources on Earth.
  8. 13. - The top limit of the troposphere.
  9. 16. hole - These absorb all radiation, formed by the collapse of large stars.
  10. 17. - A naturally occurring solid mixture of one or more minerals/organic matter.