Table of Contents
To learn different abiotic factors (including water, tempreture, sunlight, fire, soil type and oxygen levels)
To learn different biotic factors (including relationships and adaptations)
I can state and explain different abiotic factors
I can state and explain different biotic factors
I can look at an ecosystem and describe its factors
In this image what biotic and abiotic factors can you see?
These are non-living factors.
We general speak about them in terms of quaility.
e.g. The amount of light, the cloudiness of water
These are living factors.
We speak about the presnece of these and how the relate to each other.
e.g. The paracitic larva, the benefical adaptation of a birds wings
Important for ALL living organisms
Allows for chemical reactions to occur and therefore essential nutrients (for survival)
Discussed in terms of
Humidity (water in air)
Clarity (water in river/lake)
Mosture (water in soil)
Chemical reactions rely on temperature
Two types of reactions;
Ectothermic: Obtain heat from an organisms environment.
For example, Fish, amphibians and reptiles
Endothermic: Organisms that have the ability to generate heat internally
For example, Mammals, marsupials
Can either be caused by nature (lightning)
Or Intentionally (by humans)
Can be detrimental or most life, but benefical to some ecosystems (Australian Bush)
Essential for Photosynthesis (varies during seasons )
Light is often the source of energy for entire ecosystems
Not all soil types are the same their mineral content, acidity and water retention all vary. Some will therefore thrive and others will struggle (die)
Oxygen is required for organisms to respire.
Oxygen is both in the air and water
Factors that effect the amount of oxygen in the water are:
Temperature
Movement
Depth
Take note of the examples used within the video for your own refernce later.
https://www.youtube.com/watch?app=desktop&v=qJr1p55rT5M
What did you struggle with?
What was really easy?
What are you still curious about?
Which level are you currently sitting at in the success criteria?