1. Rocks and Minerals
Grade 7 Science

2. Goal
I can identify rocks and minerals using their properties and how they are formed.

3. I can identify rocks and minerals using their properties and how they are formed.
What is a mineral?
Which ways can we identify them?
Any new vocabulary or parts you did not understand?

4. I can identify rocks and minerals using their properties and how they are formed.
What is a mineral?
A pure substance that forms naturally as a solid in the earth
All rocks are made of minerals
Most rocks are a mix of minerals

5. I can identify rocks and minerals using their properties and how they are formed.
Most of the earth’s crust is made of 5 minerals:
Calcite
Quartz
Feldspar
Mica
Hornblende

6. I can identify rocks and minerals using their properties and how they are formed.
What are the 4 properties we use to identify rocks and minerals?
Colour
Lustre – How does it look in the light? Shiny? Metallic?
Streak – Colour of the powder left behind when rubbed together
Hardness – Soft? Hard?

7. I can identify rocks and minerals using their properties and how they are formed.
Let’s look at our mystery rock!
Colour?
Lustre?
Streak?
Hardness?

8. I can identify rocks and minerals using their properties and how they are formed.
Now let’s try in our groups!
Colour?
Lustre?
Streak?
Hardness?
Other?

9. Types of Rocks
Grade 7 Science