1. Little love notes…
Your little brother has drawn this picture for your mum on Mother’s Day. Unfortunately he used your science homework as his canvas, luckily your homework was written in pencil.
Discuss in pairs how you could remove the ink and save your homework.

2. Aims: Distillation • to understand the process of distillation
• to be able to name key pieces of the equipment
• to be able to give examples of mixtures that require
distillation for separation

3. When do we use distillation?
Saving the solvent
distillation
= evaporating the solvent and then
condensing the vapour to form a liquid
again
When do we use distillation?
• separation of a solvent
from a solute
• separation of two liquids
that mix with each
other

4. Distillation apparatus
thermometer
Liebig condenser
vapour
round bottom flask
mixture
water out
water in
heat
distillate
conical flask

5. How does distillation work?
In your books write an explanation of how the apparatus is used to separate the 2 liquids.
You will need to explanation how each piece of equipment is used and what its purpose is.
Words to use:
distillation, cold water, evaporates, evaporation, evaporates, lower, liquids, distillate, higher, heated, condenses, condenses, condensation, solvent, ethanol, heat, vapour, conical flask, miscible,

6. Let’s do it!
Task:
Using a simplified distillation apparatus separate ink and water
Try to obtain both ink and water

7. How do you know that you’ve got pure water?
In your pairs try to come up with a procedure to save the ships’ crew
You are stranded on the rocks of Bermuda in the ill-fated cruise liner “The Cats’ Miaow”. You have food, Wi-Fi (thank goodness!) and heat but you are running out of drinking water. Help is on its way but will arrive at least 1 week after your last drop of water…
After searching the entire ship you manage to find:
Funnels
Filter papers
Rubber tubing
Clamp stands
Burners
Conical flasks
Beakers
White tiles
Thermometers
How do you know that you’ve got pure water?
Can you obtain drinking water from the sea??

8. Homework
Congratulations! You managed to make drinking water from sea water. Now you have to tell the world of your achievement…
You can tweet
Send an to
Record a video of your “press conference” and upload to YouTube (then me the link)
Write an article for a survival magazine
You can work individually or in groups