Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

A healthy ecosystem is one in which there is abalance between
the nonliving and living things. a healthy ecosystem also depends
on sucient biodiversity of plants, animals and their habitats.
We saw at the beginning of the term that plants depend on air,
water and sunlight in order to make their food. Do you remember
what this process is called?!
Animals also depend on the non-living things in their ecosystem.
All animals need oxygen from the air to breathe and to drink water.
Some animals also use the non-living things to make their shelters.
For example, ants rely on the soil and sand to build their nests in.
ACTIVITY: Assessing the balance between living and
non-living things
INSTRUCTIONS:
1. Look at each of the following photographs of dierent
ecosystems in which the balance between living and nonliving
things has become upset.
2. Answer the questions on each picture.
A dried river bed.
In this river ecosystem, the water has dried up due to a drought.
How does this aect the biodiversity of the plants and animals in
this ecosystem?
Chapter 5. Ecosystems and food webs
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