Minerals, Rocks, and Rock Cycle

What does hardness mean?

• Is tested by the Mohs scale
• How easily it irregularly breaks apart
• How tightly packed the mineral is
• Is tested by using the scratch plate
• how it reflects light

What is a mineral?

• A solid substance made by humans
• A naturally occurring solid with a definite chemical composition
• A type of rock that forms under pressure
• A liquid substance found in the Earth's crust

What does density mean?

• how tightly packed the mineral is
• How easily it irregularly breaks apart
• Is tested by using the scratch plate
• is tested by the mohs scale
• how it reflects light

Which of the following processes involves the binding of sediments together?

• Compaction
• Cementation
• Erosion
• Weathering

Stephen simulated the rock cycle in an experiment. In his experiment, he used crayons as rocks. He first made crayon shavings. He glued the shavings and pressed them together. This represented rock type #1. He then warmed the crayon mass using a hot plate. While warming the crayons, he also applied pressure to the crayon mass. This represented rock type #2. Finally, he heated his crayon mass until it became a liquid. He poured the liquid into aluminum foil and let it cool. This represented rock type #3. Which sequence represents the order in which Stephen simulated rock types 1, 2 and 3?

• Igneous, sedimentary, metamorphic
• Metamorphic, igneous, sedimentary
• Sedimentary, metamorphic, igneous

What does fracture mean

• How easily it irregularly breaks apart
• how tightly packed the mineral is
• Is tested by using the scratch plate
• is tested by the mohs scale
• how it reflects light

Using the diagram below, Mineral #1 can be identified as

• galena
• fluorite
• limonite
• sphalerite
• chalcopyrite

refer to the following processes: I. Heat & Pressure II. Weathering & Erosion III. Cementation & Compaction IV. Melting & Cooling Changes igneous rock into metamorphic rock

• I only
• IV only
• I and IV only
• II and III only
• II and IV only

What does Luster mean?

• How it reflects light
• How easily it irregularly breaks apart
• How tightly packed the mineral is
• Is tested by using the scratch plate
• Is tested by the mohs scale

What does streak mean?

• Is tested by using the scratch plate
• How easily it irregularly breaks apart
• How tightly packed the mineral is
• Is tested by the mohs scale
• How it reflects light