Adaptation

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. The regions to the north of the ___ Circle centered on the North Pole (6)
  2. 7. Energy that makes things warm (4)
  3. 9. The natural world around us (11)
  4. 10. Greasy substance in food and body tissue (3)

Down

  1. 1. Dense coat of fine silky hairs on mammals (3)
  2. 2. The act of protecting something by surrounding it with material that reduces or prevents (10)
  3. 3. To make fit for, or change to suit a new purpose (7)
  4. 4. Low in temperature; also a sniffly illness (4)
  5. 5. An insulating layer of fat under the skin of whales and other large marine mammals (7)
  6. 6. The type of environment in which an organism or group normally lives or occurs (7)
  7. 8. The power to do work or make things move (6)