monday, september 9 warm-up
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If your fingernail can easily scratch the mineral, what is the hardness of this mineral? 2. A student notices that their unknown mineral will scratch a penny but it will not scratch an iron nail. What mineral might this unknown be? 3. What if the unknown - PowerPoint PPT PresentationTRANSCRIPT
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Monday, September 9 Warm-Up
1. If your fingernail can easily scratch the mineral, what is the hardness of this mineral?
2. A student notices that their unknown mineral will scratch a penny but it will not scratch an iron nail. What mineral might this unknown be?
3. What if the unknown mineral scratches all the common objects listed in the chart?
(1 or 2)
(4, Fluorite)
(7 or greater)
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MYP Unit Question: What’s a world without rocks? Area of Interaction: Human Ingenuity
Learner Profile: Thinker
Standard: Students will investigate the scientific view of how the earth’s surface is formed. Learning Target: Today I am learning about the properties of minerals because minerals are in everything around me.
T
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Opening:Brain-Pop Crystals
Work Session:• Finish Notes over Minerals
What’s up next:• Notebook Check• “Wanted Mineral” due Tuesday • Test over minerals
Wednesday• Bring cookies for editable lab.
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Crystal Structure • The particles of the
material line up in a regular, repeating pattern.
• Has flat sides called faces, that meet at sharp edges and corners.
is a result of a repeating pattern.
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The repeating pattern is a result of
• atoms bonding together chemically
• forming compounds.
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Definite Chemical Composition
• Always contains certain elements in the same proportion.
• Pyrite is two sulfur atoms bonding with one atom of iron.
FeS2
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Chemical Formulas• Coefficients (big
numbers) tell how many atoms of each element is in the compound.
• Subscripts (small numbers) tell how many of the atom before it that you have.
RubyAl2O3
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Native Elements• Are made from just one element.
Copper = Cu Diamond = C
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How do minerals form?
1. When liquid rock from inside the earth cools and hardens.
Cools Quickly SMALLER
crystals
Cools Slowly LARGER
crystals
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Granite
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2. When a mineral is dissolved in a liquid• Liquid evaporates Slowly = LARGER
crystals• Liquid evaporates Quickly = smaller crystals
Halite, Calcite, Gypsum, Limestone
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Groups of Minerals• Divided into two groups based on
mineral composition• Silicate minerals• Non-silicate minerals
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Silicate Minerals• Made of silicon and
oxygen, the most common elements in the Earths crust (90%)
• Quartz• Feldspar• Mica
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Non-Silicates• Usually contain carbon, oxygen, fluorine,
and sulfur.
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Closing: Luck of the Draw
In 3 or 4 sentences, summarize today’s lesson.
Person seating in seat #16