H2 §2 Mixtures part 2

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Slide 1: Diapositive
Natuurkunde / ScheikundeMiddelbare schoolhavo, vwoLeerjaar 2

Cette leçon contient 20 diapositives, avec quiz interactifs, diapositives de texte et 1 vidéo.

time-iconLa durée de la leçon est: 45 min

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Slide 1 - Diapositive

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

Slide 2 - Diapositive

Pure substances and mixtures

Slide 3 - Diapositive

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 - Lien

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 - Diapositive

Mudwater is a
A
Suspension
B
Solution

Slide 8 - Quiz

Cola is a
A
Suspension
B
Solution

Slide 9 - Quiz

Slide 10 - Diapositive

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

Filter

Residue - remains in filter
Filtrate - passes through filter

Slide 11 - Diapositive

Slide 12 - Diapositive

Slide 13 - Vidéo

Extraction
When you want to extract certain substances from something.


Slide 14 - Diapositive

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 - Diapositive

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

Slide 16 - Diapositive

.
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 - Question de remorquage

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

Slide 20 - Diapositive