Scientific

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. The smallest component of an element having the chemical properties of the element (4)
  2. 5. Exhibiting or caused by ___ (11)
  3. 6. That part of the central nervous system that includes all the higher nervous centers (5)
  4. 7. Either of two saclike respiratory organs in the chest of vertebrates (plural) (5)

Down

  1. 1. Energy that makes things warm (4)
  2. 2. Any of various water-soluble compounds having a sour taste and capable of turning litmus red (4)
  3. 3. Of or relating to or comprising atoms (6)
  4. 4. Tiniest unit of living things (plural) (5)