8/30/13Lesson Objectives: pg. 4 in journal What I expect you to learn To know and define the 3 main types of rocks To understand the different agents (causes)

8/30/13Lesson Objectives: pg. 4 in journal

What I expect you to learn

• To know and define the 3 main types of rocks

• To understand the different agents (causes) of weathering

• To know how sedimentary rock is formed

• To be able to define and perform (do to playdough/clay)– Weathering, erosion, deposition, cementation

The Rock Cycle

Hold on a minute

Lets start over… from the begining

Make me: Tree map rock typespg. 5

Draw me on page 6

Wait… what did you say? Write these under the tree map

• Sedimentary: formed by cementing of sediment layers

• Metamorphic: transformed due to heat and pressure into another rock

• Igneous: Formed by cooling magma/lava

Now lets go one step at a time

Weathering, Not that kind of rock

Definition: The breaking down of rocks into smaller pieces…. What can break rocks?

Erosion: The moving of sediment

Wind, water, ice, animals can all erode!

Deposition: When the sediment that was being transported stops.

Deposit.. Get it … like at a bank

Follow the arrows…

Hold on a second.. Not as bad as it looks

So.. Back to WeatheringSo.. Back to Weathering

• How can rocks be broken

• 3 main categories

• Physical: running water, freezing water, moving ice, rockslides

• Chemical: acid rain

• Biological (living things): plants and animals

The effects of weathering

Methods of transportation (erosion)

• Gravity

• Wind

• Water

• Ice

Formation of sedimentary rock• Later this week we will make our own rocks• So what will we use

– Sediment– Cementing agent (ingredient), in nature these

are minerals.. This can take a while (many many years) we have a week so we may cheat a bit.. Only a little

– Water (helps compact and mix in the cementer)

Have a great weekend

• Thank you all very much, I have greatly enjoyed my first week as your teacher and look forward to the fun ways to learn ahead

• Homework over the weekend!?!?!?!?!?!– Bring 2 rocks to class next week…. See not so

bad now is it.