Earth Environmental Science Unit 1.2

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Across
  1. 3. When gases in the atmosphere trap heat from the Sun, warming the planet.
  2. 6. When the ocean level is at its lowest point.
  3. 8. The layer of gases surrounding Earth that protects us and helps regulate temperature.
  4. 10. When a planet spins around its own axis. Earth’s rotation causes day and night.
  5. 13. The rise and fall of ocean water caused by the Moon’s gravity.
  6. 14. Less extreme tides that happen when the Sun and Moon are at right angles to Earth.
  7. 15. The process plants use to make food from sunlight, carbon dioxide, and water.
  8. 16. When a planet travels around the Sun. Earth’s revolution takes about 365 days.
  9. 17. The short-term conditions of the atmosphere, like rain, wind, or sunshine.
Down
  1. 1. Extra high and low tides that happen when the Sun, Moon, and Earth line up.
  2. 2. When the ocean level is at its highest point.
  3. 4. The average weather in a place over a long period of time.
  4. 5. The movement of heat in fluids (like air or water)—warm stuff rises, cool stuff sinks.
  5. 7. All the places on Earth where life exists—land, water, and air.
  6. 9. A layer in the atmosphere that protects Earth from harmful ultraviolet (UV) rays.
  7. 11. The force that pulls objects toward each other. It keeps planets in orbit and our feet on the ground.
  8. 12. Changes in weather and daylight caused by Earth’s tilt and orbit around the Sun.