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Time
For light to reach us from the nearest star other than the sun 4.2
years
That a pet rat lives 2 years
Between two football world cups 4 years
For all of the red blood cells in your body to be replaced....10
times 3 years
Distance
You can hop in 5 seconds 8 metres
A car can drive on 1$cm^{3}$ of fuel 20 metres
From the top of a 6 storey building to the ground 18 metres
The distance from the penalty spot to the goal on a football field
11 metres
Speed
Of a racehorse running at maximum speed 13m/s
Of the fastest sprinter in the world 10m/s
Of the fastest cyclist in an Olympic cycle sprint race 16m/s
Of a bus going past the school (30mph = 13.4m/s)
Mass
Of a standard family car 1500kg
Of a million cubic centimetres of water 1000kg
Of a team of international male rugby players (15 players)
1500kg
Of enough potatoes to make chips to feed everyone in the school for
a week. (~1000kg
for 1000 students)
Volume of water
in a half-filled bath 150 litres
used in a 10 minute shower 90 litres
used in 5 dishwasher cycles 75 litres
used to flush the toilet 20 times 120 litres (modern toilet)
Number of
Mars bars with the same total weight as your whole class
25000
Steps when walking at a leisurely pace for 1 hour 10000
Stitches in a handknitted jumper 75000
People at a cup final in a large stadium 90000
Area
Of the sheets of paper in a ream (500 sheets) of A4. 30m^2
Of the floor of the classroom 70m^2
Covered by 5 litres of paint 60m^2
Of fabric needed to make school uniforms for the whole class.