No Bell Work. Write N2K on your BW paper. Get out a clean piece of loose leaf paper for your N2K.

N2K 9/23/141.

Constructed Response Fossils and Earthquakes (part 1) Jonathan and Antonio had learned about earthquakes in science

class. Some scientists think that hundreds of millions of years ago, the earth used to be made up of one giant continent that scientists today call Pangaea. According to a few theories, this super-continent broke up into the seven continents we know today after a series of tectonic rifts caused it to break apart, which triggered earthquakes. Earthquakes are the shaking, rolling or sudden shock of the earth’s surface.

Jonathan’s science teacher had told his class about some more modern earthquakes, like the one in Japan that caused a tsunami in 2011, and the one in Chile in 2012 that had leveled many buildings and roads, and killed many people. Jonathan was terrified of these stories—he didn’t understand how the earth could move in such a way. His science teacher had asked the students to imagine living through an earthquake. Jonathan had found the experience terrifying as he thought of the walls around his bedroom crumbling and the ceiling above him crashing down.

Imagine living through an earthquake. Describe what the Earth is doing beneath you.

Objectives

State Performance Indicator:State Performance Indicator: SPI 0807.5.5 SPI 0807.5.5 – Compare fossils – Compare fossils

found in sedimentary rock to found in sedimentary rock to determine their relative age. determine their relative age.

TOC: TOC:

#32:#32: Fossil Works LabFossil Works Lab

Study Guide

Get out your Study Guide and grab an answer key out of the folder at your group. You need to make sure you have the correct answers to study for your test.

Fossil Works Lab

Casting material Small bowl Mixing stick Exercise sheet Each group will cast at least two items Fill out the exercise sheet while waiting

How To Cast Fossil Replicas

1. Place the mold on the flat, stable surface 2. Mix 4 tablespoons of plaster with 1 3/4 tbsp (just

above the 50 ml line) 3. Stir the plaster/water mixture with mixing stick

until there are no lumps 4. Fill the mold to the top with plaster mixture 5. Remove air bubbles by gently shaking 6. Let it sit for 20-25 minutes until it hardens 7. Separate the dies of the mold from the contents

and carefully remove the cast

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