Igneous Rocks

16

Starter

Igneous Rocks 9/3/15 9/3/15

Application: Paste notes here

ConnectionDo summarize it on page 318 in book. Exit: What type of igneous rock would you rather be and why?

Practice: Observations1. What happens when the melted

sugar is put in cold water in the 1st beaker ?

2. What happens when the melted sugar is put in cold water in the 2nd beaker ?

3. Touch the sugar from each beaker when it is laid out on paper. Write your observations about each.

15

Brain pop with quiz

EQ: How are rocks classified?

9/3/15AGENDA

Objective 6.10 B TSWBAT classify rocks by completing a demonstration lab, notes, and discussion over igneous rock.

1 Starter2. Demo3.Notes 4. Review 5. Exit

Date Lecture/ Activity/ Lab Page8/28 Syllabus /Notebook Guidelines 1-28/28 Periodic Table/ Formula 3-48/28 Language Scripts and Quickwrites 5-68/28 Lab Report/ Safety Equipment 7-88/31 Layers of the Earth Notes 9-10 9/1 Layers of the Earth Notes 11-129/2 Rocks 13-149/3 Igneous rock 15-16

Table of Contents

Igneous

Rock

–Igneous rock are classified according to their textures and compositions.

Igneous rocks are formed either underground or above ground.

  Underground, they are formed when magma deep within the earth becomes trapped in small pockets.

Compositions

This type of Igneous rock is called intrusive. It is also known as plutonic rock and is classified according to its size, shape, and position relative to the surrounding rock. Ex. Granite is this type of rock.

Igneous rocks are also formed when volcanoes erupt and lava is on the Earth’s surface.

• This type of Igneous rock is called extrusive. It is also known as volcanic rock because it is brought to the surface by volcanoes.

• Basalt and Dacite is an example of this type of rock.

Textures• Have 4 basic textures:

–a.Glassy-shiny and look like glass. The materials that make up this rock are not organized crystals.

–b. Fine-grained- made of interlocking mineral crystals.

–c. Coarse-grained- consist of interlocking mineral crystals which are all about the same size.

• Granite

–d. Porphyritic rock-large crystals scattered on a background of much smaller crystals.

TRACHYTE

 

Igneous Rocks

16

Starter

Igneous Rocks 9/3/15 9/3/15

Application: Paste notes here

ConnectionDo summarize it on page 318 in book. Exit: What type of igneous rock would you rather be and why?

Practice: Observations1. What happens when the melted

sugar is put in cold water in the 1st beaker ?

2. What happens when the melted sugar is put in cold water in the 2nd beaker ?

3. Touch the sugar from each beaker when it is laid out on paper. Write your observations about each.

15

Brain pop with quiz

EQ: How are rocks classified?