Unit 6 (2) Igneous Rocks: Fire-Born Stones of the Earth

Match

Match each description to the correct rock type

• sedimentary rock

• metamorphic rock

• igneous rock

rock fragments that have been compacted

a rock that forms from extreme heat

a rock made of magma that has cooled

• rock fragments that have been compacted

• a rock that forms from extreme heat

• a rock made of magma that has cooled

Open Ended

Explain how silica content affects the behavior and mineral composition of magma.

Multiple Choice

Which type of magma is most likely to form granite and rhyolite?

• Felsic magma

• Intermediate magma

• Mafic magma

• Ultramafic magma

Multiple Choice

Igneous rock that forms when magma hardens beneath Earth's surface

• intrusive Rock
• compaction
• Chemical Rock
• Clastic Rock

Multiple Select

Which of the following rocks are typically formed as intrusive igneous rocks?

• Granite

• Basalt

• Diorite

• Gabbro

Multiple Choice

Igneous rock that forms from lava on Earth's surface

• Organic Rock
• Intrusive Rock
• Clastic Rock
• Extrusive Rock

Multiple Choice

What is a lava plateau?

• A huge hole left by a volcanic mountain’s collapse

• A tall, cone-shaped mountain with layers of lava and ash

• A high, level area built from lava seeping out of cracks

• A steep, cone-shaped hill

Hotspot

Click on the Sill

Hotspot

Click on Dike

Hotspot

Click on the batholith

Multiple Choice

What forms when magma hardens in a volcano’s pipe?

• Batholith

• Volcanic neck

• Sill

• Dike

Multiple Choice

Which unique igneous feature is formed when thick lava flows cool and contract, resulting in hexagonal columns?

• Volcanic neck

• Columnar basalt

• Lava plateau

• Batholith

Multiple Choice

Which of the following best describes how igneous rocks are formed?

• From molten rock that cools and solidifies

• From compressed sediments and fossils

• From organic matter over millions of years

• By transformation through intense heat and pressure

Open Ended

Reflecting on today's lesson, which type of rock do you find most interesting and why?