CRCT QuestionPrimary seismic waves

a. Are slower than secondaryb. Are the result of shearing

forcesc. Can travel through solids,

liquids and gasesd. Causes Earth’s to roll up and

down*Please have Tier 1 Out

New Seating Chart

Congratulations Einstein’s of the

Month

Tier 2 Continental Drift

Make sure you EXPLAIN the words!

Lots of GREAT creative writing!

Test Answers

3 pts per multiple choice

10 pts for essay Always make sure

that you have an introduction and conclusion for your essay!

Great job to everyone

Joke of the DayBasketball Week

What do you call a pig who can

play basketball?

A Ball Hog

Week at a Glance

Today: TIER 1 DEFORMATION due Plate Tectonic Test answers, Earthquake Notes Thursday: Earthquake Extension. Tier work time Friday. TIER 2 EARTHQUAKES DUE. Tier Workday

Next week: Vocab sheet Study guide

TestTier 3

UNIT 5: EARTHQUAKES

&VOLCANOES

Two week unit! Week 1: Earthquakes

Week 2: Volcanoes

Tiers

3 categories:Deformation, Earthquakes, and

VolcanoesYour tier 3 will incorporate language arts and science!

Dates Tier 2 Earthquakes : 11/9 Tier 1 E and V: 11/13 Tier 3: 11/16

Vocabulary Sheet

Due next Thursday

Part 1: Deformation

http://www.youtube.com/watch?v=DppbibMhAXU

Flashcards

Quiz the person sitting next to you,

then switch!!!

Faulting vs. Folding

Faulting is bending and

folding is breaking

Faulting is breaking and

folding is bending

Organizing! Organize the following phrases into the three major types of stress!

Shearing, Tension, and shearing

Squeezes the rocks of the crust Pushes in opposite direction Pulls the rocks Decreases volume Increases volume Increases density Decreases density Tear and twist

Coffee TalkAll you need to know about

EarthquakesToday: What they are and where they are found Tomorrow: seismic waves

What is it?

Earthquake – is the shaking a trembling that results from the sudden movement of part of the

Earth’s crust.

What it Looks Like

This is an example of

stress, a force that acts on

rock to change its volume or

shape

Remember…this happens because of Stress!

shearing, tension, and compressionThese forces cause some rocks to become fragile and they snapSome other rocks tend to bend slowly like road tar softened by the suns heat

Stop, Drop, and Think

Where would a lot of

earthquakes be found?

Edges of Tectonic Plates

Watch it in Action!

http://www.youtube.com/watch?v=cavq2HFBa-U&feature=fvsr

Did you Know?Everyday, about 8,000 earthquakes hit Earth, but most of them are too little to feelEarthquakes will always begin in a rock beneath the surfaceA lot of earthquakes begin in the lithosphere within 100 km of Earth's surface The focus triggers an earthquakeFocus: the point beneath Earth's surface where rock that is under stress breaks

Faulting & Earthquakes

Faulting causes earthquakes.

San Andreas Fault – land to the west is moving north and the land to the east is moving south

Extra: Faults

The rocks on both sides of a fault can move up or down or sideways

When enough stress builds on a rock, the rock shatters, creating faults

Faults usually occur along plate boundaries, where the forces of plate motion compress, pull, or shear the crust too much so the crust smashes

Extra: 2 Kinds of Faults

STRIKE SLIP

Shearing creates this fault

Rocks on both sides of the fault slide past each other with a little up and down motion

It becomes a transform boundary

NORMALTension forces in Earth's crust Normal faults are at an angle, The hanging wall slips downward Normal faults occur along the Rio Grande rift valley in New Mexico, where two pieces of Earth's crust are diverging

Strike-Slip

Normal

Tsunami’s & Earthquakes

Tsunamis – earthquakes that occur on the ocean floor produce giant sea waves called tsunamis.

Parts of an Earthquake

Focus – the point beneath the Earth’s surface where the rocks break and move.

Epicenter – directly above the focus, on the Earth’s surface

Tier 2 Options

Option 1: Create a radio announcement for an earthquake warning

Option 2: Create an advertisement for

Tier 2 Earthquakes Rubric

Part 1: Vocabulary (9 points each) Did you accurately communicate the following vocabulary

1. Focus2. Epicenter3. Stress (Tension, shearing, compression)4. Seismic waves (P waves, s waves, surface waves)5. Plate Boundaries6. Faulting7. Folding8. Seismograph9. Richter Scale 10. Plate tectonics

Part 2: Presentation (10 points) Is your project neat, legible, creative, and organized