the-BA : Keeping cool

There’s nothing worse than a warm drink at a party! The traditional method of cooling drinks is either to keep them cool in a fridge (which can then take up vital space needed for party snacks) or to add ice. But fear not – there are other, more high-tech ways! A large bowl of punch could be kept cool on a table by making a simple heat-exchanger. Alternatively, a cold blast of carbon dioxide gas could be ‘shot’ into a drink to cool it down.

Have you ever wondered how best to cool down a drink?

You might like to …

• find out about heat exchangers and how they work
• compare cooling a drink by: ice; heat exchanger or gas-blast; try to make the tests fair
• investigate if different liquids cool down at different rates; see if the density of the liquid makes a difference
• see what difference it makes if you serve drinks in a cold glass or container; carry out tests to see which sorts of containers keep drinks cool for longest; try to design an affordable and reusable container to keep drinks cool.

Further links:
http://en.wikipedia.org/wiki/Heat_exchanger

	Home

	Clubs, CREST Awards and Fairs (5-19 yrs)

	CREST Awards (11-19 year olds)

	About CREST

	Project ideas

	Entertainment

	Paaaaarty!

	Flash with the bass

	Colourful rockets

	Show us your moves

	Keeping cool

	A flat dilemma

	Further Guidance