Measuring large objects

An introduction to the measurement of large objects such as a blue whale. The length of a blue whale – 30 metres – is equivalent to a class of children or three buses. Whales eat krill. Each mouthful is 40,000 litres. A blue whale is equivalent in weight to 25 elephants and weighs 170,000 kilograms.

Release date: 24 Apr 2013

3 minutes

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