Science 7 Planet Earth Test

By definition, a mineral has which of the following characteristic(s)?

• definite chemical composition
• crystal structure
• naturally occuring
• all of the above

How do you test the hardness of a mineral? 

• Throw it against a wall
• Step on it
• Scratch Test
• Kick it until it breaks

Which of the following properties does the Mohs scale measure?

• Luster
• Hardness
• Density
• Streak

Which of the following is NOT true of minerals?

• They are liquids
• They are formed in nature
• They are inorganic
• They have crystalline structure

What are the 3 major types of rocks?

• Igneous, Metamorphic, Sedimentary
• Metamorphic, Igneous, Cementation
• Brown, Red, Gray
• Streak, Hardness, Breakage

Two ways to describe types of igneous rocks are _____

• Extrusive and Intrusive
• Foliated and Non-Foliated
• Clastic and Biochemical
• Black and Gray

What process is used to form sedimentary rocks?

• Lava cools and hardens to form a rock.
• Weathering, Erosion, Deposition, Compaction, Cementation
• Extreme heat and pressure from inside the Earth turn rocks into new rocks.
• Magma trapped under the Earth's surface cools and solidifies.

This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?

• Sedimentary Rock
• Metamorphic Rock
• Igneous Rock

Which type of rock is formed from INTENSE heat and pressure?

• igneous
• sedimentary
• metamorphic

What is the MAIN way rocks are classified?

• Their color and shapes
• How they form
• Mineral bands
• Where they form