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Year 9 NSW
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The Big Bang and our universe
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Understanding time
Topic : Understanding time
In this topic you will learn...
Chapter 1 :
Geological time
By studying rocks we can study the history of our planet
Different natural forces form different types of rocks
The science that studies the history of the Earth as told by the rocks is called geology
The science that studies fossils is called palaeontology
Scientists discovered that the deepest rocks were the oldest
A geological column is an imaginary slice of the Earth's crust showing different layers of rocks, formed over different periods of time
Chapter 2 :
Fossils forming
Fossils are traces of plants or animals preserved in rocks
The number of fossils and their placement in rocks is called the fossil record
Any living organism can be fossilised if its body is quickly buried by sand or mud before it rots away
Coal and oil are fossil fuels extracted from the ground
The radiometric fossil dating method is the most accurate
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This topic includes
5 colour images
2 flash animations
1 final exam
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