Enrichment Activity

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 4. Bottom part something stands on; a safe spot in baseball (4)
  2. 5. A device that produces electricity (7)
  3. 7. Any of various substances of either mineral origin or plant or animal origin (3)
  4. 11. Any process determined by the atomic and molecular composition and structure of the substances (14)
  5. 12. A substance consisting of two or more substances mixed together (7)
  6. 13. State of matter that flows like water (6)
  7. 14. The act of conducting a controlled test or investigation (10)
  8. 15. Two or more atoms bound together as a single unit and forming part of a molecule (5)

Down

  1. 1. An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous ___ (6)
  2. 2. Energy that makes things warm (4)
  3. 3. A compound of an oxide with water (9)
  4. 6. A segment of DNA that is involved in producing a polypeptide chain (4)
  5. 8. The process of becoming a vapor (11)
  6. 9. The mechanical ___ that a body has by virtue of its motion (13)
  7. 10. A substance that initiates or accelerates a chemical reaction without itself being affected (8)
  8. 12. The basic unit of length adopted under the Systeme International d'Unites (5)