Lesson: How much water is in the world?

1234567891011
Across
  1. 3. a large area of salt water that covers the Earth
  2. 4. a large area of water with land all around it
  3. 6. all the water (solid, liquid, gas) on and around planet Earth
  4. 10. recorded measurements or observations
  5. 11. water that is not salty, such as the water in most lakes and rivers
Down
  1. 1. a large area of frozen water, found in places that are cold all year long
  2. 2. how much space something takes up
  3. 5. a measurement of the surface of something
  4. 7. water water with salt in it, such as the ocean
  5. 8. an educated guess about a number
  6. 9. an image that helps you understand the number or amount of something