unit 1 Crossword

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Across
  1. 3. The force that draws objects towards more massive ones.
  2. 4. The big rocks floating out in space that some people dream of mining one day to extract valuable resources.
  3. 7. a manmade object that orbits a planet. It is usually built for a specific purpose.
  4. 11. what we call a person who goes into space to explore or do scientific research.
  5. 12. a ______________ is a statement made in persuasive writing to introduce an idea that is opposite of the Thesis.
  6. 14. a kind of wheeled vehicle used to travel on the surface of other planets.
  7. 16. An advantage or something good that comes from something.
  8. 17. A strong opinion made by an author that is justified by evidence.
  9. 18. The last part of an argumentative/persuasive writing where the thesis is restated and cemented in the mind of the reader.
  10. 19. A living thing that is from another planet.
  11. 20. the path something takes as it moves around something else in space, like the Earth going around the sun or the moon going around the Earth.
  12. 21. A part of persuasive writing where a counterclaim is proved to be wrong.
  13. 26. A word for very little gravity.
  14. 28. the collection of gasses that gather around some planets.
  15. 30. The one or two sentence statement in the introduction of persuasive writing where the main claim is introduced and its validity is explained.
  16. 33. the first section of argumentative/persuasive writing where the reader's attention is grabbed and a claim or main idea is presented for the first time.
  17. 34. a word that describes an environment that is harsh, difficult, or impossible for humans to live in.
Down
  1. 1. A kind of satellite that is designed to allow humans to live and work within it.
  2. 2. The space shuttle disaster that happened in 1986.
  3. 5. The name of the Soviet cosmonaut who was the first person to go into space in 1961.
  4. 6. The name of the huge spherical rock that orbits the Earth. It is responsible for the tides in our oceans and Humans have used it for thousands of years to make calendars and keep time.
  5. 8. the acronym for the most famous space station, where people from many different countries come together to do scientific experiments.
  6. 9. The planet you live on.
  7. 10. The group of planets, asteroids, and moons that all orbit the Sun.
  8. 12. The space shuttle disaster that happened in 2003.
  9. 13. the surroundings or conditions that a living thing lives or operates within.
  10. 15. The kind of vehicle that is used to get people and equipment off a planet and into space.
  11. 22. A word for information, details, or data that supports a claim/thesis or that helps to prove that something is true or valid.
  12. 23. The name of the special clothes that an astronaut needs to wear in order to breath and survive the dangers of outer space.
  13. 24. The name of the United State's space agency.
  14. 25. an unmanned spacecraft sent to explore space and gather scientific information.
  15. 27. ____________ is a kind of energy that travels in waves or as particles. We often talk about this kind of energy as extremely dangerous and harmful for people.
  16. 29. The red planed in our solar system that is named after the Roman god of war.
  17. 31. The last name of the first person to walk on the moon.
  18. 32. A word used to show or prove that something or some opinion is correct or reasonable.