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Can you place these quantities in order from smallest to largest?

Order the Changes

Can you order pictures of the development of a frog from frogspawn and of a bean seed growing into a plant?

Discuss and Choose

This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

In Order

Age 7 to 11
Challenge Level

Have a look at the sets of four quantities below.

Can you rank them in order from smallest to largest? To help you decide, you may need to find extra information or carry out some experiments.

Can you convince us that your order is right?
Of a kettle of boiling water
Of the centre of the sun
On a thermometer when you are quite well
Of the water in a school pond 
Of a rocket going up on bonfire night
Of a train
Of a ladybird walking along a leaf 
Of a ball being thrown to your friend   
Taken for a puddle of water to evaporate on a hot day
Taken for frogspawn to grow into a frog
Taken to walk across the playground
Taken for the moon to orbit the earth 
Of a clap of thunder 
Of a teacher blowing a whistle
Of a tap running
Of a recorder being played by a friend