Sunday, 11 March 2012

Lesson Sketch: Land speed

Hopefully I'll get back into blogging soon, but for now here's a quick puzzle about converting units:

Have a guess: which of these animals is fastest/second fastest/slowest?
Using the measurements given, put the animals in order from fastest to slowest.


Cheetah - 70 miles per hour

Snake - 9 metres per second

Human - 751 metres per minute

Grizzly Bear - 1159 kilometres per day

Reindeer - 52 kilometres per hour

Elephant - Can travel 1 kilometre in 89 seconds


How much faster than Ussain Bolt could a cheetah run the 100m?

Answer: