14.3 Pollution

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BiologieMiddelbare schoolvwoLeerjaar 3

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Slide 1 - Diapositive

14.3 Pollution

Slide 2 - Diapositive

Learning objective
You will learn what happens with your waste, which waste products produce air pollution and how carbon dioxide in the air poses a threat.
Schedule
- learning objective
- 2 questions
-  instruction: waste
-  instruction: pollution
-  instruction: carbon dioxide
-  instruction: tolerance curve
- work on homework 
- end of class

Slide 3 - Diapositive

What percentage of a scrapped car do you think is recyclable?
A
35%
B
55%
C
75%
D
95%

Slide 4 - Quiz

Which type of organism can turn organic waste into compost?
A
Plants
B
Animals
C
Fungi

Slide 5 - Quiz

Our waste
domestic waste = waste that is produced by households
  • Recycling and reuse
  • Incineration plants = factories with ovens in which non-recyclable waste is burned after metals have been removed
  • Landfill sites = dumpsites

Slide 6 - Diapositive

Fossil fuels

Slide 7 - Diapositive

Air pollution
emission = the release of waste gases

Slide 8 - Diapositive

Consequences of pollution
1. Fine (dust) particles in the air
2. Smog = dirty fog made of particulate matter and waste gases
3. Acidification

Slide 9 - Diapositive

Consequences of soil acidification

1. Minerals dissolve and wash away to where they are unreachable for plant roots.
 
2. Toxic substances damage the root hairs. Plants fall ill as a result.

Slide 10 - Diapositive

Carbon cycle

Slide 11 - Diapositive

CO2 in the atmosphere

Slide 12 - Diapositive

Slide 13 - Diapositive

Activity of an enzyme depend on temperature
Tolerance curve for an abiotic factor

Slide 14 - Diapositive

What?
Make: 14.3 assignments 4, 5, 7, 9, 10, 12-19
How?
Work in your book. You may consult in a whisper.
Help?
Ask your neighbour first. Then raise your hand to ask me. 
Time?
10-15 minutes
Finished?
Check your answers. Study for the big test.

Slide 15 - Diapositive