Turn in your Sea-Floor Spreading Model Analysis Questions Wednesday 12/6/17 Notebook Entry: Do you think earthquakes and volcanoes are related to sea-floor spreading and subduction? Explain why or why not? Turn in your Sea-Floor Spreading Model Analysis Questions

SCIENTIFIC THEORY Explanation based on a large amount of evidence Tested many, many times and the results supported the theory. Examples: gravitational theory, plate tectonics theory, evolution theory, cell theory, etc.

Theory of Plate Tectonics Earth’s crust is broken up into pieces called plates. Earth’s plates are in slow, constant motion. Convection currents in the mantle are the cause of the motion.

Plate Boundary Types

REMINDER Vocab cards due tomorrow. Quiz tomorrow!!! Study using your spiral (maps and 2 column notes) & textbook (lessons 1 and 2)

Thursday 12/7/17 No Notebook Entry Today Please return your spiral and textbook to the cupboard. Clear off your desk for the quiz. You only need a pencil. We will be doing the vocab card peer checklist after the quiz so you do NOT need your cards right now.

Vocab Card Checklist Review your classmates cards and fill out the checklist. Return the cards and checklist to the owner. When you get your cards back make revisions if needed. Keep your cards and TURN IN THE CHECKLIST!!!!!

Friday 12/8/17 Notebook Entry: Examine the photo. What do you notice about the rocks? Record two detailed observations about the rocks in this photo. Photo of the San Andreas Fault near Gorman, California, showing rocks of the Pacific Plate (gray rocks on the left side of the fault) and the North American Plate (tan rocks on the right side of the fault). There are very few places on Earth where you can see two plates in contact like this. Photograph copyright by David Lynch. 

Plate Boundary Types

Converging Plates 2 plates move towards each other. Density of the crust determines what plates ends up on top. 2 plates have different densities = 1 sinks and creates a deep ocean trench & volcanoes. 2 plates of the same density = both go up creating high mountain ranges.

Volcanoes Mountains - Himalayas

Divergent Plates 2 plates move apart ocean crust moves apart = a mid-ocean ridge crust moves apart on land = deep valley called a rift valley.

Continent Crust Ocean Crust

Rift Valley in Iceland

Transform Plates 2 plates slip past each other moving in opposite directions. Earthquakes often occur as the plates slip past each other.

Transform Plates San Andreas Fault in CA

Plate tectonics is the cause of… Continental Drift Size and shape of the oceans Earthquakes Volcanoes Mountain Ranges Deep-ocean trenches Mid-ocean ridges Rift valley

Complete the chapter review on pages 92-95 of your textbook. Homework Complete the chapter review on pages 92-95 of your textbook.

Thursday 11/19/15 Notebook Entry: Give two examples of how plate tectonics (movement of earth’s crust) changes Earth’s surface.

Plate Boundary Puzzle Cut out the squares with pictures and word descriptions. Place the squares in the correct box on your table. Raise your hand to have your boxes checked. Once your boxes are correct glue them in. If you finish early please find a classmate who is finished and play the dice review game. Rule I forgot to add: If you roll divergent boundary, only roll one of the crust type dice. That would be the type of crust for the two plates.

Type of Plate Boundary = Red Dice Type of Crust = Green and White Dice How to play: Each pair of students will need 3 dice. One is for the type of plate boundary (divergent, convergent, transform); and two are for type of crust (oceanic, continental). See the key below for explanation of the dice colors and dot colors. The youngest person in the pair will roll first using the plate boundary dice. Record that in the chart below. Next, the other person will roll the first type of crust and write it in the chart, then roll the second type of crust and write that in the chart. Then work together to determine what type of feature is created and how it is created. Use your plate tectonics match-up from last week to help you. Alternate rolling and writing in the chart. Type of Plate Boundary = Red Dice Type of Crust = Green and White Dice White Dot Convergent Boundary Blue Dot Oceanic Crust Green Dot Divergent Boundary Red Dot Continental Crust Yellow Dot Transform Boundary

Friday 11/20/15 No Notebook Entry today! Put your spiral and textbook back in the cupboards. Turn in your Plate Tectonics Puzzle into the black tray Please get out your 4 vocabulary cards Continental Drift Sea-floor Spreading Subduction Plate Tectonics

Friday 11/20/15 No Notebook Entry today! Put your spiral and textbook back in the cupboards. Please get out your Plate Tectonics Puzzle from yesterday. Please get out your 4 vocabulary cards Continental Drift Sea-floor Spreading Subduction Plate Tectonics

Vocabulary Cards If your cards are not completed and/or at school you will need to work on them NOW! If your cards are completed: Peer review your classmate’s cards. Carefully read and review their cards- don’t rush! Return the checklist and cards to their owner. When you get your cards back: Make corrections to your cards. DO NOT ERASE ANYTHING ON THE CHECKLIST! Turn the checklist into the black tray. Put your cards back in the plastic bag and put the bag in the notebook cupboard basket.