1. GRADED
SCREENING TEST
POST TEST

6. Quiz
Time!

8. A.Water clocks
B. Hourglass
C. Sundials
D.clock
A. free from error
B. comparable
C. very useful
D. efficient

9. A. cloud formation
B. moon
C. stars
D. sun
A. at noontime
B. in the morning
C. during a rainy day
D. when the sun shines
brightly

10. A. both tell time by the hour
B. both use water to tell time
C. both are used only in the daytime
D. both have a narrow center through which something flows
A. The Uses of Clocks
B. Why People Need to Tell Time
C. Ways of Telling Time: Then and Now
D. Comparing the Different Types of Clocks
d. Humans have used different objects to tell the time.

12. b. one to twelve
c. problems

13. a. an answer to the problem
d. daylight

14. c. How the Romans Told Time

16. b. blood flow from the nasal passage

17. c. an event that is no longer surprising
d. applying a warm compress on the nose

18. d. Social factors
d. a listing of the myths regarding treatment of a nosebleed
d. Nosebleeds: Common Myths and Misconceptions

20. ANSWER KEY