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1. Use tools to compare the colours, grain sizes and hardness of different types of rocks. 5 What are the characteristics of different types of rocks? What are their uses?
Fossils Fossils are the remains of animals or plants that stayed on the riverbed or seabed, or covered by volcanic ash. They are buried within sedimentary rocks, and eventually become fossilised.
Activity Booklet 1
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granite
sandstone
marble
我發現 Rocks have different colours. Among the three samples, has the largest grains. is the hardest. Quick Check
fossil
Back to the Past Why did people in the past use rocks to make these tools? More to Explore Visit the Stephen Hui Geological Museum at the University of Hong Kong or Nina Park to learn more about rocks.
2. How do people use the unique features of the different types of rocks to make different things?
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mortar and pestle
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stone pot
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