Science Crossword puzzle - Ellysha Ok

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Across
  1. 2. Layers of gases all around earth. Also known as a safe bubble around earth.
  2. 6. It is the first line of the planet that protects the earth against sun rays.
  3. 7. Everything on earth that exists. Also, all of the ecosystems on this earth.
  4. 9. When warm air is moving at cold air and replacing it.
  5. 12. The thing that is deliberately changed or manipulated in an experiment to observe its effect on another variable. It's the "cause" in a cause-and-effect relationship.
  6. 14. Water particles that are in the air.
  7. 15. he temperature of the air when it has been fully cooled down.
  8. 16. A bit of earth’s atmosphere that increases temperature with height.
  9. 18. A layer of earth’s atmosphere which is the third layer. There are shooting stars happening there too.
  10. 19. Force is pushed on a surface by weight of air molecules and is pulled down by gravity
  11. 21. A variable that is kept “constant” or unchanged during an experiment to ensure that the results are not influenced by factors other than the independent variable being tested.
  12. 22. Transfer of heat between substances
Down
  1. 1. Weather coming down from the sky because of the temperature. This could include rain, hail, sleet, and snow.
  2. 3. This happens with coldness and dense air pushes on heat, then the warm air rises.
  3. 4. A layer that is specific and of Earth’s atmosphere.
  4. 5. The transfer of heat or energy that are going through particles that make them vibrate.
  5. 8. All of the waters that are in this world, including lakes, rivers, and brooks
  6. 10. Energy that moves from a source as waves or particles.
  7. 11. Masses Large body of air that has humidity and pressure
  8. 13. When the earth axis is tilted not to far from the sun or to close from the sun. This occurs on September 22 or 23.
  9. 15. The thing that changes as a result of the independent variable manipulation. The result.
  10. 17. The hard and solid part of earth. That can include mountains and volcanoes.
  11. 20. The Earth’s lowest layer and where there is a lot of weather and temperatures that decrease. The temperature is 17°C (62°F). It is the earth’s lowest layer.