Welcome back!!!


Hope you had a wonderful
weekend
Please…

 Copy your objective into your agenda.
 Take our your ISN.
 Update your Table of Contents
    – 1/10 Identifyi...
Catalyst
   I would like you to write a paragraph (3-5
    sentences) that includes the words…
    –   Element
    –   At...
Why is it important to properly
identify things in the world
around us?


   And HOW do we do it?
Let’s take some notes…

   Identifying minerals is very important.
    – Why? Think about the uses…
   Many minerals hav...
Let’s make a foldable.


Stop. Pencils Down. Eyes On Me.
Title: Identifying Minerals

 Tab 1: Hardness
 Tab 2: Luster
 Tab 3: Streak
 Tab 4: Cleavage/Fracture
 Tab 5: Specifi...
On each page, we need:


Definition, Additional Info, Pic
Tab 1: Hardness
   Hardness is the measure of how
    easily a mineral can be
    scratched.
    – Different than how eas...
Did you know?




Diamond is the hardest mineral known - only
a diamond can scratch another diamond.
Because of this, diam...
Tab 2: Luster
 Luster is the way a mineral reflects light.
 Two types of luster
    – Minerals are either shiny - called...
Tab 3: Streak
    Streak is the color of the mineral in a
     powdered form.
     – This is NOT always the color of the ...
13
Did you know?




 Diamonds are so hard they will
 scratch the tile rather than leaving
 a streak - you cannot identify th...
Tab 4: Cleavage/Fracture

 Minerals break apart differently.
 Cleavage is when minerals break along
  smooth, flat surfa...
Tab 5: Specific Gravity
  Specific gravity is the ratio of its weight
   compared with the weight of an equal
   volume o...
Say what?!?!



 Don’t worry, we’re going to talk
 about specific gravity tomorrow,
 so don’t freak out if that sounds
 re...
Let’s staple our foldables into our
ISN


Page 19, below the notes!!!
So, how are we going to be tested
on all this stuff?


I’m so glad you asked.
Information on minerals is often
organized in a table.
  Properties of Minerals
  Mineral        Hardness   Streak
  Coppe...
Here’s another - your turn.
Properties of Minerals
Mineral        Hardness   Streak
Quartz         7          White
Feldsp...
Let’s copy this into our notes
Properties of Minerals
Mineral        Hardness   Streak
Copper         2.5-3      Copper-Re...
Time for an exit ticket.

 You need a scratch piece of paper.
 Expectations
    – No Talking
    – Eyes on own paper
   ...
I am a mineral with a hardness of
2.5 and a dark gray streak.


Who am I?
I am a mineral with a hardness of
5.5 and I have a brown streak.


Who am I?




                             25
I am a mineral with a hardness of
3 and a silvery-white streak


Who am I?




                             26
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Rocks and minerals 2.1

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Rocks and minerals 2.1

  1. 1. Welcome back!!! Hope you had a wonderful weekend
  2. 2. Please…  Copy your objective into your agenda.  Take our your ISN.  Update your Table of Contents – 1/10 Identifying Minerals p. 18-19
  3. 3. Catalyst  I would like you to write a paragraph (3-5 sentences) that includes the words… – Element – Atom – Crystal – Mineral – Rock  …explaining how they’re related.  Do this in a way that a 4th grader could understand.
  4. 4. Why is it important to properly identify things in the world around us? And HOW do we do it?
  5. 5. Let’s take some notes…  Identifying minerals is very important. – Why? Think about the uses…  Many minerals have similar characteristics – We need to look at a variety of characteristics in order to accurately classify them.
  6. 6. Let’s make a foldable. Stop. Pencils Down. Eyes On Me.
  7. 7. Title: Identifying Minerals  Tab 1: Hardness  Tab 2: Luster  Tab 3: Streak  Tab 4: Cleavage/Fracture  Tab 5: Specific Gravity
  8. 8. On each page, we need: Definition, Additional Info, Pic
  9. 9. Tab 1: Hardness  Hardness is the measure of how easily a mineral can be scratched. – Different than how easily they break.  Measured on the “Mohs Scale” – Named after Fredrich Mohs – 1-10 – The higher the number, the harder the mineral.
  10. 10. Did you know? Diamond is the hardest mineral known - only a diamond can scratch another diamond. Because of this, diamonds are often used as the blades of saws designed to cut through rock!
  11. 11. Tab 2: Luster  Luster is the way a mineral reflects light.  Two types of luster – Minerals are either shiny - called metallic minerals, or…. – …not shiny, which are called non-metallic.
  12. 12. Tab 3: Streak  Streak is the color of the mineral in a powdered form. – This is NOT always the color of the mineral.  Test this by scratching on a porcelain tile. – This only works when the mineral is softer than the surface!  This is a good way to tell the difference between minerals that might look the same.
  13. 13. 13
  14. 14. Did you know? Diamonds are so hard they will scratch the tile rather than leaving a streak - you cannot identify the diamond by streak because it is just too hard!
  15. 15. Tab 4: Cleavage/Fracture  Minerals break apart differently.  Cleavage is when minerals break along smooth, flat surfaces.  Fracture is when minerals break unevenly, leaving a rough or jagged surface.
  16. 16. Tab 5: Specific Gravity  Specific gravity is the ratio of its weight compared with the weight of an equal volume of water.  To be able to identify specific gravity, we need to know our sample minerals volume AND mass.  Density = mass / volume.
  17. 17. Say what?!?! Don’t worry, we’re going to talk about specific gravity tomorrow, so don’t freak out if that sounds real hard.
  18. 18. Let’s staple our foldables into our ISN Page 19, below the notes!!!
  19. 19. So, how are we going to be tested on all this stuff? I’m so glad you asked.
  20. 20. Information on minerals is often organized in a table. Properties of Minerals Mineral Hardness Streak Copper 2.5-3 Copper-Red Galena 2.5 Dark Gray Gold 2.5-3 Yellow Hematite 5.5-6.5 Red/Brown Magnetite 6-6.5 Black Silver 2.5-3 Silver/White
  21. 21. Here’s another - your turn. Properties of Minerals Mineral Hardness Streak Quartz 7 White Feldspar 6 Gray Halite 2-2.5 White Pyrite 6-6.5 Green/Black Apatite 5 White Silver 5-6 Black 21
  22. 22. Let’s copy this into our notes Properties of Minerals Mineral Hardness Streak Copper 2.5-3 Copper-Red Galena 2.5 Dark Gray Gold 2.5-3 Yellow Hematite 5.5-6.5 Red/Brown Magnetite 6-6.5 Black Silver 2.5-3 Silver/White 22
  23. 23. Time for an exit ticket.  You need a scratch piece of paper.  Expectations – No Talking – Eyes on own paper – Use your table from your notes! – Turn paper over when you finish – There are 3 questions... 23
  24. 24. I am a mineral with a hardness of 2.5 and a dark gray streak. Who am I?
  25. 25. I am a mineral with a hardness of 5.5 and I have a brown streak. Who am I? 25
  26. 26. I am a mineral with a hardness of 3 and a silvery-white streak Who am I? 26

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