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In Order

Age 7 to 11
Challenge Level Yellow star
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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?
 
 
 
Temperature
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 
 
Speed
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   
 
Time
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 
 
Sound
Of a clap of thunder 
Of a teacher blowing a whistle
Of a tap running
Of a recorder being played by a friend 

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Order, Order!

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The Time Is ...

Can you put these mixed-up times in order? You could arrange them in a circle.

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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