EQ: How are basic properties used to determine the type of mineral being investigated?A: Give students minerals and have them determine 3 characteristics of their mineral. Share/discuss.T: •Record identifying properties of minerals as class reads text pages 270-273.•Brainpop mineral indentification•Moh’s scale activity.•Mineral Characteristics Lab

S: Write a paragraph to explain how we would use basic properties to distinguish between 2 rocks that appear to be the same but are not.HW: Wkbk 81, 86

Essential Question:

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Color Sometimes can help you, can sometimes fool you.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Color Sometimes can help you, can sometimes fool you.

Streak Produced by scraping a mineral sample across an unglazed, white tile. Not always the same color as the mineral itself.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Color Sometimes can help you, can sometimes fool you.

Streak Produced by scraping a mineral sample across an unglazed, white tile. Not always the same color as the mineral itself.

Luster How light reflects from a mineral’s surface.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Color Sometimes can help you, can sometimes fool you.

Streak Produced by scraping a mineral sample across an unglazed, white tile. Not always the same color as the mineral itself.

Luster How light reflects from a mineral’s surface.

Hardness What scratches the mineral and what can be scratched by it.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Color Sometimes can help you, can sometimes fool you.

Streak Produced by scraping a mineral sample across an unglazed, white tile. Not always the same color as the mineral itself.

Luster How light reflects from a mineral’s surface.

Hardness What scratches the mineral and what can be scratched by it.

Moh’s Scale A way to classify minerals by hardness on a scale from 1 to 10. One is the softest, ten is the hardest.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Color Sometimes can help you, can sometimes fool you.

Streak Produced by scraping a mineral sample across an unglazed, white tile. Not always the same color as the mineral itself.

Luster How light reflects from a mineral’s surface.

Hardness What scratches the mineral and what can be scratched by it.

Moh’s Scale A way to classify minerals by hardness on a scale from 1 to 10. One is the softest, ten is the hardest.

Specific gravity

How heavy it feels, heft.

Cleavage When a mineral is split into pieces and produces regular planes that reflect light.

Fracture When a mineral breaks into pieces with jagged, rough edges.

Color Sometimes can help you, can sometimes fool you.

Streak Produced by scraping a mineral sample across an unglazed, white tile. Not always the same color as the mineral itself.

Luster How light reflects from a mineral’s surface.

Hardness What scratches the mineral and what can be scratched by it.

Moh’s Scale A way to classify minerals by hardness on a scale from 1 to 10. One is the softest, ten is the hardest.

Specific gravity

How heavy it feels, heft.

Other Properties

These include attracting a magnet, reacting to acid, double refraction, and taste.

Cleavage When a mineral is split into __________ and produces __________ planes that reflect light.

Fracture When a mineral breaks into pieces with __________, rough edges.

Color Sometimes it can __________ you, can sometimes __________ you.

Streak Produced by __________ a mineral sample across an unglazed, white______. Not always the same ________ as the mineral itself.

Luster How __________ reflects from a mineral’s surface.

Hardness What _____ the mineral and what can be __________ by it.

Moh’s Scale A way to classify minerals by __________ on a scale from 1 to 10. One is the __________, ten is the hardest.

Specific gravity

How __________ it feels, heft.

Other Properties

These include attracting a __________, reacting to acid, double refraction, and _____.

Cleavage

Fracture

Color

Streak

Luster

Hardness

Specific Gravity

How the Mohs Scale works:

On each level of the scale a mineral can be scratched by something of the same or higher level, but nothing lower.

Test your mineral specimen by trying to scratch it with your fingernail. If it can be scratched by your fingernail, it has a hardness of 1.0-2.5.

If it doesn't scratch, next try a copper penny. If you are able to scratch your specimen with the penny but not with your fingernail, it has a hardness between 2.5 and 3.5.

If the specimen does not scratch with a penny, try the nail. If it cannot be scratched with the penny, but can be scratched with the nail, it has a hardness of 3.5-9.0. A diamond can only be scratched by another diamond.

Color Hardness Cleavage/Fracture

Streak Luster Mineral?(This will be filled in at the end)

1.

2.

3.

4.

5.

Draw this chart on you paper

HardnessMineral

Associations and Uses1

(can be scratched by a fingernail.) 2

May be scratched by a fingernail or by a copper coin.)

3(Can be scratched by a steel pocket knife or sometimes a copper coin. Will scratch a fingernail, may scratch a copper coin.)

4(Can be scratched by a steel pocket knife. Will scratch a fingernail and a copper coin.)

5(Can be scratched by a steel pocket knife. Will scratch a fingernail and a copper coin.)

6(Will not scratch glass but will scratch steel blades, copper coins & fingernails.)

7(Will scratch glass, steel blades, copper coins & fingernails.)

8(Will scratch glass, steel blades, copper coins & fingernails.)

9(Will scratch glass, steel blades, copper coins & fingernails.)

10(Will scratch all of the above.)

Treasures in the Earth Activity

Use the provided clues by hanging them up around the room and choosing which ones and how many you would like your students to answer.