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Separation & Purification. Today’s Lesson. Separation & Purification Some Questions Filtration Poster. Separate A Solid From A Liquid. There are different ways to separate a solid from a liquid. These include: By filtering By centrifuging Evaporation Crystallizing. Filtering.

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Presentation Transcript
today s lesson
Today’s Lesson
  • Separation & Purification
  • Some Questions
  • Filtration
  • Poster
separate a solid from a liquid
Separate A Solid From A Liquid
  • There are different ways to separate a solid from a liquid. These include:
    • By filtering
    • By centrifuging
    • Evaporation
    • Crystallizing
filtering
Filtering
  • As you can guess, you can separate liquid and a solid through filtration. The solid is removed from the solution through filter paper.
  • The solid is left in the filter paper.
  • The liquid will be left in the conical flask.
centrifuging
Centrifuging
  • If the particles are suspended in liquid (small particles that do not sink to bottom), then centrifuging will help.
  • You put the mixture into a test tube. The test tube is then spun around quickly and the solid moves towards the bottom.
evaporation
Evaporation
  • You can remove a liquid from a dissolved solid through evaporation.
  • The liquid will evaporate and the solid will be left behind
crystallization
Crystallization
  • When a liquid is heated, it can often dissolve more solid. This is because there is more energy present (as heat) and any physical changes that occur can happen more easily.
  • When the liquid cools, the some of the aqueous (in liquid) solid will then form a crystal.
questions
Questions
  • Read pages 256/257 and answer Q 1-6
  • Homework: Read "A Closer Look At Gases' P230-231 and answer Q1, 2, 3, 4 & 5.
finishing experiment
Finishing Experiment
  • Now – let’s filter our experiment from last lesson. Fun Fun!!!!

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poster
Poster
  • We will be creating a poster for a chosen atom but it will be a little different – we will be writing in the third person 
  • The posters are due Monday 3rd of September and will be displayed out in the 3rd Floor Corridor.
  • Information to be covered is on next slide
to be included
To be included
  • Introduce yourself – who found you, are you are metal/non-metal/metalloid, what are you used for.
  • Introduce how to read a Periodic table through your atom. Include symbol, atomic mass, atomic number. Show how to find out the number of protons, electrons and neutrons.
  • What period or group are you in? Tell us what they both tell us
continued
Continued
  • Include an electron dot diagram for your element.
  • Do I have any isotopes? If so – what are they and what percentage does each have
  • Any other interesting facts or pieces of information
  • Bibliography using MLA referencing.