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Speedy Sidney

Two trains set off at the same time from each end of a single straight railway line. A very fast bee starts off in front of the first train and flies continuously back and forth between the two trains. How far does Sidney fly before he is squashed between the two trains?

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Air Nets

Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.

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Mixing Lemonade

Can you work out which drink has the stronger flavour?

Temperature

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

What do you notice about the Celsius and Fahrenheit readings as the temperature falls from the boiling to the freezing point of water?

You could use a graphical method...

You could try an algebraic approach...