Classifying Rocks

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

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

• Sedimentary Rocks

• Extrusive Rocks

• Intrusive Rocks

• Metamorphic Rocks

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

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

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

What are all of the Intrusive Igneous Rocks?

• Pegmatite

• Basalt

• Granite

• Scoria

What are the 4 main rocks from Intrusive Igneous Rocks?

Tags

NGSS.MS-ESS2-1

What is Igneous Rocks?

• Rocks made of lava or magma.

• Made by pressure or heat.

• Made of sediment.

What is Metamorphic Rocks?

• Made of heat or pressure.

• Made of sediments.

• Made of soil.

How do geologists classify rocks?

• by color

• by grain size

• by chemical composition

• by how they form

Igneous rock forms in regions where –

• rock is heated to melting point then cooled to a solid.

• metallic minerals are put under extreme pressure.

• a river deposits sand and mud over a long time.

• evidence of organisms is becoming fossilized.

Metamorphic rocks are different from igneous and sedimentary rocks in that metamorphic rocks form -

• when liquid rock freezes into a solid.

• by magma rising from Earth’s core.

• from existing rock that has been changed.

• by layering minerals of different sizes.

Tags

NGSS.MS-ESS2-1