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