u3. task 6 · • step 3- do task 7 (it is uploaded on the school webpage) what’s the biosphere?...
TRANSCRIPT
U3.
TASK 6
INSTRUCTIONS
Hello 5th graders! Follow these steps: • Step 1- You have to watch and listen to these videos:
Part 1-https://www.dropbox.com/s/oyuc04u5wpd2fr0/PART%201.mp4?dl=0
Part 2- https://www.dropbox.com/s/izsunnimrkgfdsj/PART%202.mp4?dl=0
• Step 2- Read the slides again • Step 3- Do TASK 7 (It is uploaded on the school webpage)
What’s the biosphere?
The place where a population lives is called its habitat. An ecosystem that has several types of habitat is called a biome. The biosphere is the biggest known biome. It includes all of the ecosystems on Earth.
Biome Habitat Biosphere
Why do ecosystems change?
Natural changes in ecosystems are caused by variations in environmental conditions, such as seasonal changes or the natural development of ecological communities. Fires are frequent in the summer. Often the fires are caused by human activity, but sometimes they’re caused by lightning.
h"ps://www.youtube.com/watch?v=RWeyptLa7rwgenera=ongenius.com/videolessons/natural-disasters-video-for-kids/
Why do ecosystems change?
Human activities such as pollution, overfishing, forest fires and deforestation can destroy habitats or entire ecosystems.
Overfishing Pollution Forest fires Deforestation
h"ps://www.ccma.cat/tv3/super3/infok/illes-de-plas=c/video/5759103/
What have we learnt?
biotope biocoenosis
The two parts that compose an ecosystem are ...
What have we learnt?
woodland city prairie coast
The different types of ecosystems are …
pond
What have we learnt?
overfishing forest fires deforestation
Human activities that change ecosystems include ...
pollution
