Exploring the Igneous Rock Chart

The podcast provides an in-depth review of the igneous rock chart from the Earth Science Reference Table. It covers the texture and crystal size of rocks, distinguishing between intrusive and extrusive formations. The discussion includes rock characteristics such as color, density, and composition, and how these relate to mineral content. The podcast concludes with examples of specific rocks, emphasizing the importance of understanding the reference table for identifying and classifying rocks.

What is the primary factor that determines the texture of igneous rocks?

• Mineral composition

• Density

• Crystal size

• Color

Which type of rock is formed deep below the Earth's surface with very slow cooling?

• Sedimentary rocks

• Extrusive rocks

• Volcanic rocks

• Intrusive rocks

What type of rocks are characterized by having gas pockets?

• Glassy rocks

• Coarse-grained rocks

• Vesicular rocks

• Non-vesicular rocks

Which side of the igneous rock chart represents rocks with high density?

• Top side

• Left side

• Right side

• Bottom side

What composition do rocks on the left side of the chart have?

• Ultramafic composition

• Intermediate composition

• Felsic composition

• Mafic composition

Tags

NGSS.MS-ESS1-4

What are the building blocks of rocks?

• Gas pockets

• Minerals

• Crystals

• Textures

Tags

NGSS.MS-ESS3-1

Which mineral is unique to Dunite?

• Mica

• Olivine

• Feldspar

• Quartz

What is the primary difference between Granite and Obsidian?

• Color

• Mineral composition

• Density

• Cooling time

Which rock is characterized by quick cooling and small crystals?

• Granite

• Obsidian

• Pegmatite

• Basalt

What type of composition does Basalt have?

• Ultramafic

• Intermediate

• Mafic

• Felsic