A. Telling Time

1. Which of the following ways of telling time made use of sand?

• a. water clocks

• b. hourglass

• c. sundials

• d. clock

2. None of the clocks used long ago were accurate. Accurate in the sentence means ________.

• a. free from error

• b. comparable

• c. very useful

• d. efficient

3. When men of long ago told time at night, they looked at the _________ to tell the time.

• a. cloud formation

• b. moon

• c. stars

• d. sun

4. The sundials may not be useful in telling time __________.

• a. at noontime

• b. in the morning

• c. during a rainy day

• d. when the sun shines brightly

5. How are the hourglass and the water clock similar?

• 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.

6. The best title of the selection is _____________.

• 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

7. Which of these sentences is a topic sentence?

• a. The invention of the clock 600 years ago was the first accurate measurement of time.

• b. Hourglass contained sand that fell through one container to another.

• c. Long ago people used simple tools such as the hour glass.

• d. Humans have used different objects to tell the time.