Homework: Rocks and Weathering and Fossils – Levels 5–7
Rock Types
Use your scientific knowledge and understanding to produce a leaflet explaining why
different types of rock have different properties.
Task
Use your scientific knowledge and understanding to produce a leaflet on rocks. In
your leaflet:
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




identify the three types of rock; describe how each type is formed and what it
is like
describe how different rocks are used and explain why they are used in these
ways
describe what a fossil is, how it forms and how it can be used to date rocks
explain the different ways that water can weather rocks
explain how coal is formed and why we cannot say exactly when we will run
out of coal
discuss the environmental problems of using fossil fuels like coal.
Mark scheme
Level
You should:
5
explain what happens in freeze-thaw weathering
explain how coal is formed and why it is an important resource
describe how some rocks are used and explain why they are used
in these ways.
6
explain how acid rain is formed and why it affects some rocks more
quickly
explain how fossils can be used to date rocks.
7
explain why we cannot say exactly when we will run out of coal
discuss the environmental problems of using fossil fuels like coal.