Investigation 5 - Igneous Rocks

How are igneous rocks formed?

• From layers of sediments being deposited

• From melted rock cooling and solidifying

• From heat and pressure put on sedimentary rocks

Tags

NGSS.MS-ESS2-1

When you see an igneous rock that has large crystals, what does that tell you about HOW and WHERE that rock formed?

• The rock was formed INSIDE the earth and cooled SLOWLY

• The rock was formed INSIDE the earth and cooled QUICKLY

• The rock was formed on the EXTERIOR of the earth and cooled SLOWLY

• The rock was formed on the EXTERIOR of the earth and cooled QUICKLY

Tags

NGSS.MS-ESS2-1

What part of the Earth includes continents, ocean floors, and layers of sedimentary rocks?

• Inner core

• Outer core

• Mantle

• Crust

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-3

There is an area in Idaho named Craters of the Moon, where most of the ground is covered in basalt, a dark gray igneous rock with no visible crystals. What can you infer about the geological history of the area?

• The bedrock in that area must be made out of basalt.

• There could never have been a volcano around.

• There was once a volcano in the area

• There was originally a lot of sedimentary rock before the basalt was deposited

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS1-4

Identify the six layers of the Earth's interior in order from 1-6:

• Inner core, outer core, mantle, lithosphere, crust, asthenosphere

• Inner core, outer core, mantle, asthenosphere, crust, lithosphere

• Inner core, outer core, lower mantle, middle mantle, oceanic crust, continental crust

• Inner core, outer core, upper mantle, convection currents, continental crust, oceanic crust

What is bedrock and where can I find it?

• Bedrock is the rock underneath rocks, soil, and ocean. It can be found at the Earth's surface everywhere.

• Bedrock are the rocks we see when we dig up soil. It can be found at the Earth's surface everywhere.

• Bedrock is the rock underneath rocks, soil, and ocean. It can be found at the Earth's surface of the Grand Canyon.

• Bedrock is an igneous rock. it can be found near volcanoes.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS1-4

Where did the model of the Earth's interior come from if we can't travel through the Earth to see it?

• It came from geologist digging up the Earth.

• It came from Earthquake data

• It came from researching igneous rocks

• It came from the book "How to Dig a Hole to the Other Side of the World"

Tags

NGSS.MS-ESS2-1

Choose ALL the EXTRUSIVE igneous rocks:

• Basalt

• Granite

• Obsidian

• Pumice

• Scoria

Choose ALL the INTRUSIVE igneous rocks:

• Basalt

• Granite

• Tuff

• Gabbro

• Rhyolite

Your friend wanted to show you an intrusive igneous rock. What would you expect it to look like?

• Large crystals, coarse-grained

• Small/no crystals, coarse-grained

• Large crystals, fine-grained

• Small/no crystals, fine grained