Metric and imperial units

problem
Favourite

Olympic Measures

Age

11 to 14

Challenge level

1 out of 3

These Olympic quantities have been jumbled up! Can you put them back together again?
problem
Favourite

All in a Jumble

Age

11 to 14

Challenge level

2 out of 3

My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
problem
Favourite

Triathlon and Fitness

Age

11 to 14

Challenge level

2 out of 3

The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
problem

Illusion

Age

11 to 16

Challenge level

3 out of 3

A security camera, taking pictures each half a second, films a cyclist going by. In the film, the cyclist appears to go forward while the wheels appear to go backwards. Why?
problem

Watching the Wheels Go 'round and 'round

Age

7 to 11

Challenge level

1 out of 3

Use this information to work out whether the front or back wheel of this bicycle gets more wear and tear.
problem

At the Pumps

Age

7 to 11

Challenge level

1 out of 3

How will you find out how much a tank of petrol costs?
problem

Weighing Fruit

Age

7 to 11

Challenge level

1 out of 3

Can you use this information to estimate how much the different fruit selections weigh in kilos and pounds?
problem

A Day With Grandpa

Age

7 to 11

Challenge level

3 out of 3

Grandpa was measuring a rug using yards, feet and inches. Can you help William to work out its area?
problem

Robot Camera

Age

14 to 16

Challenge level

2 out of 3

Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?