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MP3 Ch 8 Ecology

Chapter 8 Ecology - page 200
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Slide 1: Tekstslide
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In deze les zitten 40 slides, met interactieve quizzen, tekstslides en 4 videos.

Onderdelen in deze les

Chapter 8 Ecology - page 200

Slide 1 - Tekstslide

8.1 Food chains and Food webs
Aims:
Describe pyramids of numbers and biomass (and energy)
Describe (explain) how energy moves through trophic levels in ecosystems
Explain that energy is lost from foodchains, mainly as heat

Slide 2 - Tekstslide

Slide 3 - Video

Slide 4 - Tekstslide

How to draw a pyramid?

Use rectangles instead of triangles

Slide 5 - Tekstslide

Slide 6 - Video

Pyramids of numbers can have 'strange' shapes

Slide 7 - Tekstslide

This is an example of
A
pyramid of numbers or biomass
B
pyramid of food
C
accumulation
D
pyramid of energy

Slide 8 - Quizvraag

Slide 9 - Tekstslide

Slide 10 - Tekstslide

Slide 11 - Tekstslide

Slide 12 - Tekstslide

2

Slide 13 - Video

Recall MRSGREN

Slide 14 - Open vraag

List three reasons why energy is lost in between trophic levels

Slide 15 - Open vraag

Review Quiz with the spinner

Slide 16 - Tekstslide

Write down any questions you have about 8.1 Food chains and webs
or
two things you have learned today

Slide 17 - Open vraag

Homework for next lesson
RSQ 8.2 Population changes
Pg 205-209. Answ Q 1-8 on pg 209
COMPLETE THE WORKSHEET (Marley wood food web)

Slide 18 - Tekstslide

8.2 Population changes
Aim:
Define population
Competition for resources limits population size
List the major population limitations
Predator-prey population changes
Human population changes

Slide 19 - Tekstslide

Slide 20 - Tekstslide

S-shape Growth curve of micro-organisms
Can you list the limiting factors?

Slide 21 - Tekstslide

Suggest three factors that might decrease the population if lynx?

What is the influence of the physical environment?

And migration?

Slide 22 - Tekstslide

Slide 23 - Tekstslide

End of lesson 8.2
RSQ Pg 205-209. Answ Q 1-8 on pg 209.

Slide 24 - Tekstslide

8.3 Human Influences
(Climate change only)
Aim:
Increasing carbon dioxide levels are associated with climate change

Slide 25 - Tekstslide

Slide 26 - Video

climate change

Slide 27 - Woordweb

How do we generate energy?
What are renewable and non-renewable sources of energy?

Slide 28 - Tekstslide

Slide 29 - Tekstslide

Which is not a greenhouse gas?
A
oxygen
B
water vapour
C
carbondioxide
D
methane

Slide 30 - Quizvraag

Slide 31 - Link

Slide 32 - Tekstslide

Which is a example of a non-renewable energy source?
A
solar energy
B
wind energy
C
burning biomass
D
burning petrol/diesel

Slide 33 - Quizvraag

What could be an effect of global warming?
A
increase of oxygen levels in the sea
B
disruption of ecosystems

Slide 34 - Quizvraag

Slide 35 - Tekstslide

Think Pair Share


Find as many links to climate change due to global warming in this image

Slide 36 - Tekstslide

Resource: BBC Bitesize

Slide 37 - Tekstslide

Read the revision pages in BBC Bitesize and take the test. Share any questions you have here:

Slide 38 - Open vraag

Case study: Methane
- What is methane?
- What is the source?
- How can we use methane?
- What if methane levels increase in the atmosphere?

Slide 39 - Tekstslide

End of 8.3
Answer q 3 on page 211 and q 4 on page 212

Slide 40 - Tekstslide