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In your SJ, Make a data table like this: Make a data table like this: Hot Characteristics and where you experience it Cold Characteristics and where you.

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Presentation on theme: "In your SJ, Make a data table like this: Make a data table like this: Hot Characteristics and where you experience it Cold Characteristics and where you."— Presentation transcript:

1 In your SJ, Make a data table like this: Make a data table like this: Hot Characteristics and where you experience it Cold Characteristics and where you experience it With the scientist Team at your table, list all the characteristics of hot and of cold.

2 A. Heat transfer movement of energy from a warmer object to a cooler object. movement of energy from a warmer object to a cooler object. Three Types: 1. Radiation 2. Conduction 3. Convection Highlight on the graphic organizer what is in yellow

3 1. Radiation Transfer of heat energy through empty space. fire sun fire sun

4 2. Conduction Transfer of heat energy by direct contact/touch of particles of matter.

5 3. Convection Transfer of heat energy by movement of a heated fluid Transfer of heat energy by movement of a heated fluid Caused by differences in temperature and density Caused by differences in temperature and density Heated particles spread apart -less dense, rise Heated particles spread apart -less dense, rise Cool particles stay together-more dense, fall Cool particles stay together-more dense, fall

6 B. Convection Currents in Earth’s Mantle The heating and cooling of the mantle changes the magma’s density, and the force of gravity sets the convection currents in motion. convection currents in motion. Convection AnimationOcean currents

7 C. Alfred Wegener First, German scientist First, German scientist Second, 1910 proposed continental drift theory Second, 1910 proposed continental drift theory 1)Once “all lands” joined together and now drifted apart 1)Once “all lands” joined together and now drifted apart 2)Called “Pangaea” 2)Called “Pangaea” Third, To prove it, he studied Third, To prove it, he studied Landforms, Fossils, Climate http://www.ucmp.berkeley.edu/geology/anim1.html

8 D. Evidence of Landforms Mountain ranges Mountain ranges similar rock patterns found in Argentina and South Africa. similar rock patterns found in Argentina and South Africa.

9 E. Evidence of Fossils Glossopteris and other fossils Glossopteris and other fossils found same patterns in South America and Africa. found same patterns in South America and Africa.

10 F. Evidence of Climate Tropical plants found in cold climates

11 G. Why did scientists reject Wegener’s Theory? Wegener could not provide a satisfactory explanation for the force that pushes or pulls the continents. Wegener could not provide a satisfactory explanation for the force that pushes or pulls the continents. What was that force? What was that force?


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