Week 6 Rock-Forming Minerals
Task 1 Searching for minerals in rocks
Granite is a rock that was once molten. It cooled deep in the earth’s crust. It has very large crystals.
It is a good rock to study first as you can see the large crystals of minerals that make it up. |
Wave Rock, Hyden, WA is a granite outcrop.
Granite formed deep within the earth’s crust. Why is on the surface of the earth today? |
Make observations of the rock granite under the binocular microscope.
Draw the granite showing the large, interlocking crystals.
Label their colours.
Minerals
Rocks are mixtures of minerals. Minerals are pure substances (compounds or elements). Because they are elements or compounds minerals have recognisable, specific properties.
Instructions
In pairs - Work through the minerals, rotating them through the whole team
Observe the minerals beneath the binocular microscope.
Describe as fully as you can what you observe. Write in the table as a guide.
Try scratching each mineral with your fingernail, the copper coin and the iron scissor blade. State which mineral is the hardest, softest and why you think this.
Put a few drops of acid on each mineral. Note if there is any fizzing. Wash each mineral after the acid treatment. What is the name of this mineral?
Draw the granite showing the large, interlocking crystals.
Label their colours.
Minerals
Rocks are mixtures of minerals. Minerals are pure substances (compounds or elements). Because they are elements or compounds minerals have recognisable, specific properties.
Instructions
In pairs - Work through the minerals, rotating them through the whole team
Observe the minerals beneath the binocular microscope.
Describe as fully as you can what you observe. Write in the table as a guide.
Try scratching each mineral with your fingernail, the copper coin and the iron scissor blade. State which mineral is the hardest, softest and why you think this.
Put a few drops of acid on each mineral. Note if there is any fizzing. Wash each mineral after the acid treatment. What is the name of this mineral?
Task 2 - Minerals - Note Taking
SA1 Earth Materials: Minerals and Rocks
Read pages 66 to 67
Write the heading "Minerals"
Answer questions 1 to 4 and questions 14 and 15
Read pages 67 to 68
Write the heading "Rock Types"
Igneous Rocks
Answer questions 5 to 7
Read pages 66 to 67
Write the heading "Minerals"
Answer questions 1 to 4 and questions 14 and 15
Read pages 67 to 68
Write the heading "Rock Types"
Igneous Rocks
Answer questions 5 to 7
Factors affecting crystal size in Igneous Rocks
Read pages 68 to 69
Write the heading "Sedimentary Rocks"
Answer questions 8 to 9
Read pages 69
Write the heading "Metamorphic Rocks"
Answer questions 10 to 11 and question 16
Read pages 69 to 70
Write the heading "Rock Cycle"
Answer questions 12 to 13
Write the heading "Sedimentary Rocks"
Answer questions 8 to 9
Read pages 69
Write the heading "Metamorphic Rocks"
Answer questions 10 to 11 and question 16
Read pages 69 to 70
Write the heading "Rock Cycle"
Answer questions 12 to 13