1. Read-Around REVIEW: retro-, an-, anti
backward, back, against, opposite

2. What are the prefixes that mean against or opposite?

3. the prefixes an- and anti-

4. What is the word that names a word with opposite meaning?

5. antonym

6. What is the word that means to go back and install something new into a product that already exists?

7. retrofit

8. What is the word that describes a person who is thinking and looking back on the past?

9. retrospective

10. What is the word that describes a substance often added to soap products to kill bacterial germs?

11. antibacterial

12. What is the word that means a cure for something that could otherwise be deadly?

13. antidote

14. What is the word that names a substance adults might take when they have a stomachache?

15. antacid

16. What is the name of the medicine that works against a cold or allergy?

17. antihistamine

18. What is the word that describes something that goes back to a prior time?

19. retroactive