Rock Cycle and Types of Rock

Choose the three steps that tell how lava turns into rock.

• The minerals in the lava cool and form crystals

• The hot liquid hardens into a solid rock

• Lava escapes through openings in the earth

• The layers press down on one another

What is necessary to create metamorphic rock? Choose two answers.

• pressure

• water

• wind

• heat

where does most metamorphic rock form ?

• At the Surface

• Just below the Surface

• in ocean waters

• deep underground

How long as the rock cycle been going on?

• centuries

• millions of years

• thousands of years

• decades

A _________is a solid inorganic substance that is naturally formed in nature.

• mineral
• fossil
• synthetic
• artifact

The _________of a mineral is how easily it can be scratched.

• hardness
• luster
• streak
• value

Rock can then be melted by the hot temperatures deep inside the earth to form _______.

• magma
• sediment
• mucous
• sand

How does sedimentary rock become metamorphic rock?

• heat and pressure
• time and cold
• nobody knows
• trick question because it doesn't

Heat and pressure from the earth can squeeze and deform rock into

• METAMORPHIC
• SEDIMENTARY ROCK
• IGNEOUS ROCK
• GAS

Put the layers in order from oldest to youngest.

• a, b, c, d, e
• b, c, d, a, e
• b, c, d, e, a 
• e, d, c, b, a