Planet Earth and Beyond

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Across
  1. 5. the outer core is the only __________ layer, made up of iron and nickel
  2. 8. Burning Fossil fuels releases greenhouse gases into the ____________.
  3. 9. Pieces of broken rock deposited by wind or water
  4. 11. Earth spinning on its own axis
  5. 13. The path of a planet or star around another.
  6. 16. The layer of the earth that creates the earth's magnetic field.
  7. 19. soil made up of gritty, course grains
  8. 20. the layer of the earth where all people, creatures and plants live
  9. 21. A layer of dead plant and animal that mixes with topsoil
  10. 24. Rock formed from dead sea creatures
  11. 26. Shale is rock formed from _______.
  12. 29. The Asteroid belt lies between _____ and Mars
  13. 30. The Earth's ____________ takes 365 days.
Down
  1. 1. The process of fossilisation takes _______ of years.
  2. 2. A fossil of the physical remains of an animal, plant or object.
  3. 3. _____________ is where gases released from burning fossil fuels heat up the planet and causes climate change.
  4. 4. The primary source of energy for all life on earth
  5. 6. A fossilized impression or footprint
  6. 7. The __________ form because of Earth's orbit around the sun.
  7. 10. The third Planet from the sun
  8. 12. Uranus is known as the _____ giant.
  9. 14. Which Planet is the Hottest?
  10. 15. Remains or impressions preserved in rock over time.
  11. 16. During photosynthesis, the waste product is ________.
  12. 17. The time it takes for Earth to complete one full rotation
  13. 18. the process of plants making their own food
  14. 22. Which Planet is known as the Red Planet?
  15. 23. the centre of the earth made up of a solid iron ball
  16. 25. Plants grow best in this soil
  17. 27. The four things needed to sustain all life on earth are _____, air, water and sunlight.
  18. 28. the thickest layer of the earth