UNIT 4- Dynamic Crust

Summary and Review Sheets	ARTICLES	Essential Questions:
UNIT 4 NOTES and WORKSHEETS  [ Don’t need to print, answer in your notebook] SUMMARY OF THE UNIT REVIEW SHEET 1 REVIEW SHEET2 REVIEW SHEET 3	1- Seafloor Spreading Plate Tectonics What determines the impact of an earthquake EARTHQUAKE SAFETY: What are Earthquake Hazards? What to do Before, During, and After an Earthquake Earthquake Magnitude & Intensity	1)  Why is Earth considered to be dynamic? 2)  How do Earth processes shape our planet? 3)  How do we study Earth’s past?

POWER POINTS

PPT 1-Earth Layers

PPT 1a 3 boundaries/ESRT page 5

PPT 2a- Three types of Plate Boundaries

PPT 3- Continental Drift

PPT 4- Evidence for the Plate Tectonics

PPT 5- Seafloor Spreading

PPT 6- Earthquakes

PPT 6b Earthquakes 2

PPT 6c- Earthquake’s disaster and preparedness

LABS

PPT 1- Crustal Boundaries LAB

PPT 2- Location of epicenter LAB

VIDEOS & Animations

Animations

Hot Spot formation: https://www.youtube.com/watch?v=jG-Sy0y08GM Origin of Hawaii Arc:  https://www.youtube.com/watch?v=W2k8nd54Zcc Break up of Pangea:  https://www.youtube.com/watch?v=uLahVJNnoZ4 Plate Boundaries: https://www.youtube.com/watch?v=GeDcnFUvBdw Alaska Earth Quake https://www.youtube.com/watch?v=CRT2byajDsk Ocean floor features https://www.youtube.com/watch?v=Z1b3yNgIfKw Distance from Epicenter  https://www.youtube.com/watch?time_continue=1&v=SFJ_l3uFkPI&feature=emb_logo Difference of P and S waves , or Backward. https://www.youtube.com/watch?v=3eFS4WhsrHA How to find epicenters by using compass[ triangulation]https://www.youtube.com/watch?v=TBss68oBmmk

CHALK WALK Qs

ANSWER THESE QS, / Read this to find the answers

READ ME 

1. How does oceanic lithosphere form?
2. Does the oceanic lithosphere get older or younger as you move closer to
   the mid-ocean ridge?
3. Explain How do the parallel magnetic “stripes” near mid-ocean ridges form?
4.  The Earth is about 4.6 billion years old. However, the oldest sea
   floor is only about 180 million years old. What do you think is the reason for this?
   (Hint: Remember that new seafloor is constantly being created, but the Earth is
   not getting bigger with time.
5. What features are found at most divergent boundaries?Explain each.Why do continent-continent convergent boundaries produce very tall mountain ranges?
6. What are convection .currents? Explain the causes and effects of these currents.
7. Name three processes that may cause tectonic plates to move. Describe How fast do tectonic plates move?Identify Give two features that are found only at plate boundaries, and two features that are found most commonly at plate boundaries.
8. Why does oceanic lithosphere sink beneath continental lithosphere at
   convergent boundaries?How do folds indicate that deformation has
   happened? Explain the causes and effects of these folds.