The Science of Ecosystems

This week we have been starting our first science unit,In this unit we are learning about ecosystems.

In ecosystems you must have abiotic and biotic elements. When we make trails in the bush, that we don’t use again grass will start to grow back this is ecological succession. The biotic things in the ecosystem might be a micro-organism. Some organisms might live in the in the atmosphere in some levels this is called biosphere.

Then the plants also use a process called photosynthesis to get the most sunlight in which they turn the sun light into sugar then take in CO2 which then creates oxygen for us to breath. An ecosystem needs scavengers to eat  corpses examples of this is a raven and a vulture. But there are also decomposers which break down the corpses. Finally there is bio-accumulation which is when toxins from mine tailings causes a bad change in the ecosystem.

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