Sugar Search

What you need

– A can of regular fizzy drink
– A can of diet fizzy drink
– A large, preferably see-through, container
– Water

What to do

– Fill the container with water leaving some room at the top
– Guess what will happen if you put one of the cans in
– Put the regular drink can in the water and watch what happens
– Repeat with the diet variety

What's going on

The regular drink can will sink and the diet drink will float. The regular can contains sugar which makes it more dense than the water so it sinks. The diet can does not contain sugar (it contains a sweetener instead) and is less dense than the water, so floats. The sweetener is a lot sweeter than sugar so not so much of it is needed. Have a look at the ingredients on the regular can to see how much sugar is in there – no wonder it sinks!

Facts

Sugar can come from sugar cane or sugar beet. (would be nice to show images) Sugar cane is a grass and can grow 5 metres high. Sugar beet is a large plant crop which looks similar to a parsnip.

Sugar was first used by families in the UK in 1319* *(http://www.sugarnutrition.org.uk/sugar-information/history-of-sugar/). Before then honey was used to sweeten our food and drink. 

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