Earth's spheres

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Across
  1. 2. the state of matter that has a define volume but not a define shape
  2. 4. water that is on the surface of the planet, underground, and in the air
  3. 5. anything that has mass and takes up shape
  4. 7. the unit used to express power
  5. 8. any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
  6. 12. a mirror that has a flat surface
  7. 13. a push or pull on an object
  8. 14. a measure of the gravitational force exerted on and object
  9. 15. a reflective sound wave
Down
  1. 1. the region on, above, and below the Earth's surface where life exists
  2. 3. a force of attraction between objects that is due to their masses
  3. 5. A basic unit for SI
  4. 6. a layer of gas and suspended solids extending from the Earth's surface up many thousands of miles
  5. 8. A form of matter that does not have a define volume or shape.
  6. 9. the capacity to do work
  7. 10. a state of matter in which the volume and shape of a substance are fixed
  8. 11. the SI unit for force