6.2 Feeding relationships and cycles

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6.2 Feeding relationships and cycles


  1. Copy the learning goals below into your notebook
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Learning goals: after this lesson you can...
- describe the groups of organisms in the nutrient cycle.
- describe the water cycle and the carbon cycle.



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Slide 1: Slide
BiologieMiddelbare schoolmavo, havoLeerjaar 2

This lesson contains 28 slides, with interactive quizzes, text slides and 1 video.

time-iconLesson duration is: 45 min

Items in this lesson

start task 
6.2 Feeding relationships and cycles


  1. Copy the learning goals below into your notebook
  2. Join this LessonUp

Learning goals: after this lesson you can...
- describe the groups of organisms in the nutrient cycle.
- describe the water cycle and the carbon cycle.



timer
7:00

Slide 1 - Slide

planning

  1. review bs1: organisms & their environments
  2. video: water & carbon cycle
  3. notes
  4. (home)work
timer
7:00

Slide 2 - Slide

               Abiotic
                Biotic

Slide 3 - Drag question

Put the need organism in the correct order to make a food chain. Tip: start with the producer (the plant)
-->

Slide 4 - Drag question

questions about 6.1?

Slide 5 - Slide

turn down your screen please

Slide 6 - Slide

6.2 overview

- Producers, consumers and reducers
- Nutrient, water and carbon cycles
- Waste
timer
7:00
Learning goals: after this lesson you can...
- describe the groups of organisms in the nutrient cycle.
- describe the water cycle and the carbon cycle.



Slide 7 - Slide

Slide 8 - Video

Photosynthesis
CO2 + H2O + 'sunlight / energy' --> C6H12O6 + O2

Carbondioxide + water + sunlight --> glucose (sugar) + oxygen

Slide 9 - Slide

🌱 Food Chain

Producers: Plants – make food by photosynthesis.

Consumers: Animals – eat plants or other animals.

Primary consumers: eat plants

Secondary consumers: eat animals

Breakdown agents: bacteria and fungi – break down dead remains into nutrients in the soil.

Slide 10 - Slide

breakdown agents

Slide 11 - Slide

🌱 Food Chain


🔬 Breakdown agents (decomposers)
Breakdown agents: bacteria and fungi – break down dead remains into nutrients in the soil.

Slide 12 - Slide

Producers
Primary Consumers (herbivores)
Secondary Consumers
Tertiary Consumers
Apex predator
D
e
c
o
m
p
o
s
e
r
s

Slide 13 - Drag question

Producer
Primary consumer
Secondary consumer
Tertiary consumer

Slide 14 - Drag question

turn down your screen please

Slide 15 - Slide

♻️ Cycles

Nutrient cycle
Substances move: 
plant → animal → breakdown agent → soil → plant.

Slide 16 - Slide

Nutrient cycle

Slide 17 - Slide

♻️ Cycles

Water cycle
Evaporation → Condensation → Precipitation → 
water returns to oceans/rivers.

Slide 18 - Slide

Water cycle

Slide 19 - Slide

♻️ Cycles

Carbon cycle

CO₂ in air → taken in by plants → used and released again by animals and breakdown agents.

Slide 20 - Slide

Carbon cycle
pp 194

Slide 21 - Slide

Carbon cycle
CO2 is used by producers for photosynthesis--> forms glucose

Glucose is then used to make more energy-rich substances

Energy-rich substances consumed by consumers and reducers

Slide 22 - Slide

Carbon cycle
But everyone respires, releasing CO2 (what does respiration mean again?)

And every organism produces waste and dies...

Breaking down waste products releases CO2 

Slide 23 - Slide

♻️ Biodegradable
Comes from plants or animals, can be broken down by breakdown agents.

🚯 Plastic soup
Plastic does not break down → ends up in the food chain → harmful for animals and humans.

Slide 24 - Slide

Plastic soup
Plastic slowly breaks down into smaller particles

Eventually particles become microscopic (microplastics)

Accumulates in tissues

Slide 25 - Slide


Explain in one sentence how plants, animals and breakdown agents together create a cycle of nutrients.








Slide 26 - Open question

What
Do exercises 1-3 and 5-7 (pp 196-200)
How
Help
.


Done?
Check and correct (Classroom).
Test yourself + flashcards BvJ online.
  1. Book: Use the text and images from pages 192-196
  2. Neighbour
  3. Teacher
You may quietly work together with your neighbour.
Conversations should only be about the exercises.
- describe the groups of organisms in the nutrient cycle.
- describe the water cycle and the carbon cycle.
timer
15:00

Slide 27 - Slide

Carbon Cycle
Carbon in Carbondioxide (CO2 in air) 
carbon in glucose
(producers)
Carbon in energy rich (organic) molecules
Carbon in energy rich (organic) molecules in animals (fats, carbohydrates, protein) 
(consumers)
Carbon in energy rich (organic) molecules
(reducers)
respiration
fotosynthesis
respiration
respiration
Air
Example rabbit
Example bread fungus
Example: oak tree

Slide 28 - Drag question