Paaaaaarty! .pdf

Click below to read a summary of the Paaaaaarty! project ideas for Bronze, Silver, and Gold awards; or to go back to project ideas click here.

CREST Bronze
Discover how rockets work
Everyone enjoys a good firework display! Most fireworks have some sort of rocket component that fires part of, or the entire firework up into the air. The rocket system works by expelling the gases produced when the firework ignites, out of the back of the firework, which then recoils upwards. The colours produced when a firework explodes are produced by burning chemicals – different chemicals, different colours. As the chemicals heat up they give out light in the form of sparks.

CREST Silver
Design and build a model disco light unit
How do the lights and sound at a nightclub coordinate together? The lights appear to flash in time to the beat, and change colour with the pattern of the sound. How is the signal from a sound source such as a CD player or DJ deck converted into a pattern of lights?

CREST Gold
Investigate the froth on top of a fizzy drink and make a product to maximise the head on drinks
When a fizzy drink, like cola or beer, is poured into a glass, the release of pressure from the bottle or can causes carbon dioxide gas to come out of dissolved solution and form bubbles. The bubbles rise to the surface and create a froth or ‘head’. If you have ever watched the froth, it changes thickness over time, ‘decaying’ from a maximum thickness to nothing. Is the decay pattern always the same? Is it ‘exponential’?