Rocks & Minerals

Which statement is true about rocks?

• Magma is made of solid rock.
• Rocks are made of one or more minerals.
• Crystals are made of rocks.
• Minerals are made of one or more rocks.

Diamond has a hardness of ___ on Mohs Hardness Scale.

• 1
• 5
• 8
• 10

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 mineral is number 6 on the hardness scale?

• Conrundum
• Topaz
• Quartz
• Orthoclase

What can you infer about graphite from the fact that you can scratch it with just your fingernail?

• It's not very lustrous.
• It's not very hard.
• Its streak is black colored.
• It has fracture.

Which mineral is ranked highest on the Mohs scale? 

• Talc
• Calcite
• Quartz
• Diamond

The name of a scientist that studies rocks and minerals is called a . . . 

• biologist
• geologist
• zoologist
• rockologist

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

What do all rocks have in common?

• same size
• same color
• contain minerals
• same shape

What mineral is the softest?

• quartz (7)
• mica (2)
• feldspar (6)
• talc (1)

What was the purpose of the scratch test?

• to find if the rock contained calcite
• to find the hardness of the mineral 
• to find the color