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)

Where are they now?

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.

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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.

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.

The repeating pattern is a result of

• atoms bonding together chemically

• forming compounds.

Definite Chemical Composition

• Always contains certain elements in the same proportion.

• Pyrite is two sulfur atoms bonding with one atom of iron.

FeS2

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

Native Elements• Are made from just one element.

Copper = Cu Diamond = C

How do minerals form?

1. When liquid rock from inside the earth cools and hardens.

Cools Quickly SMALLER

crystals

Cools Slowly LARGER

crystals

Granite

2. When a mineral is dissolved in a liquid• Liquid evaporates Slowly = LARGER

crystals• Liquid evaporates Quickly = smaller crystals

Halite, Calcite, Gypsum, Limestone

Groups of Minerals• Divided into two groups based on

mineral composition• Silicate minerals• Non-silicate minerals

Silicate Minerals• Made of silicon and

oxygen, the most common elements in the Earths crust (90%)

• Quartz• Feldspar• Mica

Non-Silicates• Usually contain carbon, oxygen, fluorine,

and sulfur.

Closing: Luck of the Draw

In 3 or 4 sentences, summarize today’s lesson.

Person seating in seat #16