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Power Up 4 - Unit 7 - Cross-curricular
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Put the clocks in order according to when they were invented.
 
sundial > hourglass > analogue clock > digital clock
 
digital clock > analogue clock > hourglass > sundial
 
sundial > hourglass > digital clock > analogue clock
 
hourglass > sundial > analogue clock > digital c
Where can you see clocks nowadays?
Nowadays clocks are everywhere: on the wall, on computers, tablets, phones or even in the street.
What is a digital clock?
A digital clock is a clock with numbers, without hour and minute hands.
What is an analogue clock?
An analogue clock is a clock with hour and minute hands.
Which clock uses sand?
An hourglass uses sand.
When doesn’t a sundial work?
A sundial doesn’t work on cloudy days or at night.
How did the Egyptians tell the time?
The Egyptians built enormous towers, used shadows and the sun to tell the time.
What are the two types of machines?
There are simple and complex machines.
COMPLETE: Clocks control _____.
 
modern life
 
our attitude
 
our studies
 
our work
How can machines help us?
Machines can help us in different ways: to work, travel, communicate… or to have fun.