End-Term Test Revision- 4G

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Across
  1. 4. Saving resources and using them wisely
  2. 5. Remains of past living things
  3. 7. Lines that run east to west
  4. 8. Outer layer of Earth
  5. 10. Goals a design must meet
  6. 12. Harmful substances in the environment
  7. 15. Low land between mountains or hills
  8. 16. Moving sediment from one place to another
  9. 17. Moving parts of Earth that cause earthquakes
  10. 20. Breaking down rocks into smaller pieces
Down
  1. 1. Forces that build up land
  2. 2. Help us find places
  3. 3. A limit in designing a solution
  4. 6. Long-term changes in Earth’s weather
  5. 9. Caused by moving Earth’s plates
  6. 11. A model used to test an idea
  7. 13. Natural features like mountains and valleys
  8. 14. Energy from sources like sun and wind
  9. 18. Imaginary line dividing Earth into halves
  10. 19. When materials are dropped