Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?
In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
Is it really greener to go on the bus, or to buy local?
Can you choose your units so that a cube has the same numerical value for it volume, surface area and total edge length?
Practice your skills of measurement and estimation using this interactive measurement tool based around fascinating images from biology.
Which units would you choose best to fit these situations?
Can you match up the entries from this table of units?
When you change the units, do the numbers get bigger or smaller?
Can you use this information to estimate how much the different fruit selections weigh in kilos and pounds?
How will you find out how much a tank of petrol costs?