6.2 Comparing populations

6.2 Comparing populations          p. 154
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Slide 1: Tekstslide
Biologie9th Grade

In deze les zitten 58 slides, met interactieve quizzen, tekstslides en 3 videos.

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6.2 Comparing populations          p. 154

Slide 1 - Tekstslide

Slide 2 - Tekstslide

Describe how this affects both populations (in-/decrease) and why.

Slide 3 - Open vraag

Red vs. Grey Squirrels

Slide 4 - Tekstslide

Slide 5 - Tekstslide

Describe how this affects both populations (in-/decrease) and why.

Slide 6 - Open vraag

Milkweed vs. Butterflies

Slide 7 - Tekstslide

Homework answers (6 - 14)

Slide 8 - Tekstslide

Slide 9 - Tekstslide

Slide 10 - Tekstslide

Slide 11 - Tekstslide

4

Slide 12 - Video

02:17
Which one is correct?
(decomposers = fungi / bacteria)
A
Primary consumer - producer - secondary consumer - decomposer
B
Producer - primary consumer - secondary consumer - decomposer
C
Decomposer - primary consumer - secondary consumer - producer
D
Producer - decomposer - primary consumer - secondary consumer

Slide 13 - Quizvraag

02:37
Which one is the producer?
A
the tree
B
the acorns
C
the rat
D
the snake

Slide 14 - Quizvraag

03:08
Which one is true?
A
A food chain is made from many food webs
B
A food web is made from many food chains

Slide 15 - Quizvraag

03:19
timer
0:20
what does your body
need energy for?

Slide 16 - Woordweb

Slide 17 - Tekstslide

Slide 18 - Tekstslide

timer
1:00

Slide 19 - Tekstslide

How many food chains did you see?

Slide 20 - Open vraag

timer
1:00

Slide 21 - Tekstslide

The longest food chain:

Slide 22 - Open vraag

Workbook page 185
questions 15 a and b

Make a photo and 
upload in the next screen!
timer
5:00

Slide 23 - Tekstslide

Slide 24 - Tekstslide

Your answers to Q 15 a and b:

Slide 25 - Open vraag

Slide 26 - Video

Slide 27 - Tekstslide

Practise questions!

Slide 28 - Tekstslide

Which animal(s) would be MOST affected if all the grass died?
hawk
sparrow
caterpillar
grass
fox
mouse
berries
timer
1:00

Slide 29 - Tekstslide

Which animal(s) would be
MOST affected if all the grass died?

Slide 30 - Open vraag

What would happen to all the hawks if the number of foxes would decrease?
hawk
sparrow
caterpillar
grass
fox
mouse
berries
timer
1:00

Slide 31 - Tekstslide

What would happen to all the hawks
if the number of foxes would decrease?

Slide 32 - Open vraag

Mercury in the sea = kwik in de zee
Mercury used to be found in pesticides and paint for boats. Mercury is poisonous and damages the nervous system and reproductive system in mammals.

Look at the food chain and explain why mercury could be a problem for human health.

Slide 33 - Tekstslide

Explain why mercury could be
a problem for human health.
timer
1:00

Slide 34 - Open vraag

Slide 35 - Tekstslide

Slide 36 - Tekstslide

4

Slide 37 - Video

00:27
What are 'trophic levels?'
A
Food chains
B
Food pyramids
C
Horizontals in a food pyramid
D
Food webs

Slide 38 - Quizvraag

01:06
What does the width of the bars represent?
A
How much the organisms in it eat
B
How many organisms are in it
C
How much energy the organisms in it have
D
How many organisms are eaten by the next level

Slide 39 - Quizvraag

01:27
What does each trophic level in a pyramid of biomass represent?
A
How many organisms are in it
B
The combined weight of the organisms in it
C
How heavy the food is that the orhganisms eat
D
How many food items the organisms represent

Slide 40 - Quizvraag

03:00
What does the width of a trophic level in a pyramid of biomass represent?

Slide 41 - Open vraag

Slide 42 - Tekstslide

Slide 43 - Tekstslide

Slide 44 - Tekstslide

Slide 45 - Tekstslide

Slide 46 - Tekstslide

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Slide 48 - Tekstslide

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Slide 50 - Tekstslide

Workbook page 187
questions 18 - 22

What you do not finish 
now will be homework.
timer
5:00

Slide 51 - Tekstslide

Slide 52 - Tekstslide

Slide 53 - Tekstslide

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Slide 57 - Tekstslide

Q's 23 (2) - 25

Slide 58 - Tekstslide