After our experiments to evaporate the water from soft drink and create crystals from a filtered copper sulphate solution, we will have an assessment task – separating rice grains, salt, iron filings and sand from a mixture of these components.
Here are some sites to help you learn more about separating mixtures:
A worksheet to complete: http://www.hi.com.au/resource/science/pdf/Mixtures2.pdf
Separating salt and sand: http://www.zephyrus.co.uk/separatingmixtures1.html
Separating iron from sand; http://www.mikecurtis.org.uk/mixtures.htm
CATALYST (video): Recycling water
CATALYST (video): Froth Flotation