1st Nine Weeks Test- 6th

Which BEST describes the rock cycle?

• New rocks form from older rocks.
• Lunar rocks change into terrestrial rocks.
• Rocks in the ocean become rocks on land.
• Layers of rock are broken by faults.

In order for sediments to become rock, the sediments are generally

• liquefied.
• compacted.
• returned to their origins.
• mixed with organic material.

Which type of rock forms from extreme heat and pressure?

• Igneous
• Sedimentary
• Organic
• Metamorphic

Rocks that are "born from fire" because they are formed from lava or magma.

• Igneous

• Sedimentary

• Metamorphic

Rocks that are made when an existing rock is put under a lot of heat and pressure.

• Igneous

• Sedimentary

• Metamorphic

What property is being observed when you rub a mineral on a surface and look at the color of the mark it leaves? 

• hardness
• color
• streak
• magnetism

A rock formed from fragments of other rocks is a(n)

• Metamorphic Rock
• Sedimentary Rock
• Extrusive Rock
• Igneous Rock

This rock was another type of rock that was heated and compressed over time. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

This rock started as molten magma. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

The process when rocks break into smaller pieces due to exposure to natural elements is called

• erosion
• weathering
• sediments