It's about time

Which type of clock cannot be used as an alarm clock?

• candle clock

• grandfather clock

• digital clock

• shadow clock

which kind of electrical clock uses numbers to tell the time?

• shadow clock

• digital clock

• water clock

• candle clock

If you were standing in a desert, what's the easiest clock to build?

• grandfather clock

• digital clock

• cuckoo clock

• shadow clock

What does a wristwatch use for power?

• Battery

• Sun

• analog

• digital

Which type of clock is the worst at giving the time at night?

• cuckoo clock

• grandfather clock

• shadow clock

• wristwatch