H2 §2 Mixtures part 2

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Slide 1: Slide
Natuurkunde / ScheikundeMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 20 slides, with interactive quizzes, text slides and 1 video.

time-iconLesson duration is: 45 min

Items in this lesson

Slide 1 - Slide

Today
  1. Repeat different types of mixtures
  2. Discuss assignments 1 t/m 3 + 5 & 6
  3. Seperation methodes
  4. Homework

Slide 2 - Slide

Pure substances and mixtures

Slide 3 - Slide

How many types of molecules does a mixture have?
A
1 type of molecule
B
2 types of molecules
C
at least 1 type of molecule
D
at least 2 types of molecules

Slide 4 - Quiz

Slide 5 - Link

A suspension is
A
clear
B
cloudy

Slide 6 - Quiz

Solution



  • Clear and transparent
  • Colourless or coloured
  • Mixture solid/liquid with a liquid
Suspension



  • Cloudy
  • Always coloured or white
  • Mixture of a solid and a liquid

Slide 7 - Slide

Mudwater is a
A
Suspension
B
Solution

Slide 8 - Quiz

Cola is a
A
Suspension
B
Solution

Slide 9 - Quiz

Slide 10 - Slide

Filtration      
Separating solid from liquid 
This can be done with a suspension

Filter

Residue - remains in filter
Filtrate - passes through filter

Slide 11 - Slide

Slide 12 - Slide

Slide 13 - Video

Extraction
When you want to extract certain substances from something.


Slide 14 - Slide

Making tea
The colour, aroma, and flavour ingredients dissolve in hot water.

The tea leaves themselves do not dissolve
This is called extraction

How do you remove the tea leaves from your tea at the end?

Slide 15 - Slide

Solvent (hot water)
Yellow globules dissolve (fragrance, colour and flavour)
Red globules do not dissolve (tea leaves).

Slide 16 - Slide

.
What kind of mixture is the residue and what kind of mixture is the extract?
A
The residue is a solution, so is the extract.
B
The residue is a suspension, so is the extract.
C
The residue is a solution the extract a suspension.
D
The residue is a suspension, the extract a solution.

Slide 17 - Quiz

You can separate a suspension by
A
evaporation
B
extraction
C
filtration

Slide 18 - Quiz

Suspension
Residue
Filtrate

Slide 19 - Drag question

H2§2: 1t/m8 
Prepare for the experiment.             

Slide 20 - Slide