multi-word fill quiz on 7Hwf2 "Solutions"
(a doc brown worksheet for QCA KS3 science-chemistry)

Site Meter* Do online OR printout, do, return to check answers. * KS3 Science Index * EMAIL comment?query * Doc Brown's Chemistry updated June 11th 2009 *

   0      100      80      boiling      condensation      dissolved      distillation      freezing      liquid      lower      mixture      pure      vapour   

1. A liquid containing some solid impurities can be purified by the mixture, which is the state change of liquid to (gas).

2. Cooling the gas causes which is the change of gas to a . The overall purification process is called .

3. The liquid water boils at oC and it starts at oC.

4. Ethanol (alcohol) boils at oC, so it has a boiling point than water.

5. The different substances in a complex like oil can be separated using distillation.