Khaki Strebel 2009

Rock Cycle

Khaki Strebel-6th grade Main Objectives

-Students will be able to explain the rock cycle-Students will be able to identify the main types of rocks in the rock cycle.-Students will be able to give examples of each of the main types of rocks.

Khaki Strebel 2009

Rock Cycle Overview

Khaki Strebel 2009

Sediment Sediment is formed from

weather and erosion.

Sediment-small, solid pieces of material that come from rocks or organisms.

Khaki Strebel 2009

Deposition Deposition occurs after the

sediment is formed.

Deposition-process in which sediment is laid down in new location.

Khaki Strebel 2009

Cementation and Compaction Next cementation and

compaction happens. (lithification)

Cementation-the process by which dissolved minerals crystallize and glue particles of sediment together.

Compaction-the process by which sediments are pressed together under their own weight.

Khaki Strebel 2009

Sedimentary Rocks Sedimentary rock- a type

of rock that forms when particles from other rocks or the remains of planets and animals are pressed and cemented together.

Examples: Sandstone Shale Conglomerate

Khaki Strebel 2009

Heat and pressure When heat and pressure

are applied to sedimentary rocks they form metamorphic rocks

Khaki Strebel 2009

Metamorphic Rock Metamorphic rock- a type

of rock that forms form an existing rock that is changed by heat, pressure, or chemical reaction.

Examples Quartzite Gneiss Slate

Khaki Strebel 2009

Magma and Lava This causes the rocks to

melt.

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Cooling Cooling comes after the

melting. The rate of cooling is

effected by the location of the magma/lava.

This also effects what kind of igneous rock is formed.

Khaki Strebel 2009

Igneous Rock Igneous rock-a type of rock

that forms from the cooling of molten rock at or below the surface.

Intrusive and extrusive Examples

Granite Obsidian Rhyolite

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Rock Cycle Review

Khaki Strebel 2009

Let’s play a game

Khaki Strebel 2009

Review sedimentary, metamorphic,

igneous

Sedimentary-sandstone, shale, conglomerate

Metamorphic- quartzite, gneiss, slate

Igneous- granite, obsidian, rhyolite

What are the 3 types of rocks?

Can you give me any examples mentioned in this PowerPoint for each of the 3 types of rocks?

Khaki Strebel 2009

If you want, go to the website below and play the game.

https://www.teachingwithtech.org/student_content/earth_science/files/rock_cycle.swf

This is a GREAT site to use for studying!