Rocks and Minerals

ID Plagioclase Feldspar

• perfect cubic cleavage, metallic luster, lead-gray color, and relative softness

• non-metallic, vitreous to pearly luster; white to dark gray color; and cleavage planes

• brassy metallic luster, black streak, brittle fracture, hardness greater than that of glass, absence of cleavage and it is nonmagnetic.

Tags

NGSS.MS-PS1-1

Hematite ID

• reddish-brown streak, metallic hematite has a shiny luster, iron ore

• cubic crystals, mineral form of sodium chloride, NaCl

• opaque, non-metallic chat is blackish silver in color and metallic to dull in sheen, metal lead

Glassy igneous rock

• Scoria

• Pumice

• Obsidian

• Granite

4 mechanisms of erosion

• Plants, animals, human activities, and construction
• Water, wind, glaciers, and gravity

• Chemical reactions, volcanic eruptions, earthquakes, and landslides
• Fire, earthquakes, hurricanes, and tornadoes

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What 2 factors are involved in making metamorphic rocks?

• Water and wind
• Volcanic activity and erosion
• Heat and pressure
• Sunlight and air

What does the Mohs Scale measure?

• Color of minerals
• Weight of minerals
• Temperature of minerals
• Hardness of minerals

How do you test the hardness of a mineral?

• By observing its color
• By measuring its weight
• Using the Mohs scale
• Using the Smith scale

Name 3 minerals with metallic luster

• Diamond, Corundum, Garnet
• Hematite, Sulfur, Gypsum
• Pyrite, Galena, Magnetite
• Quartz, Feldspar, Calcite

What's the difference between magma and lava?

• Magma is beneath the Earth's surface, while lava is on the Earth's surface.
• Lava is only found in volcanoes
• Magma is hotter than lava
• Magma and lava are the same thing

What are the 3 types of sedimentary rock?

• Clastic, chemical, and biochemical (organic)

• Limestone, shale, and sandstone
• Granite, marble, and quartz
• Igneous, metamorphic, and volcanic