In your SJ,In your SJ,

Make a data table like this:Make a data table like this:

HotCharacteristics and whereyou experience it

ColdCharacteristics and where you experience it

With the scientist Team at your table,list all the characteristics of hot and of cold.

A. A. Heat transferHeat transfer

movement of energy frommovement of energy from a a warmer warmer object to object to a cooler a cooler object.object.

Three Types:Three Types:

1. Radiation1. Radiation

2. Conduction2. Conduction

3. Convection3. Convection

Highlight on the graphic organizer what is in yellow

1. 1. RadiationRadiationTransfer of heat energy through Transfer of heat energy through

empty spaceempty space..

firefire sunsun

2. 2. ConductionConduction

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

3. 3. ConvectionConvectionTransfer of heat energy by Transfer of heat energy by

movement of a heated fluidmovement of a heated fluidCaused by differences in Caused by differences in

temperature and density temperature and density HeatHeated particles spread apart -ed particles spread apart -less less

densedense, rise, riseCoolCool particles stay together- particles stay together-more more

densedense, fall, fall

B. B. Convection Currents in Convection Currents in Earth’s MantleEarth’s Mantle

The heating and The heating and cooling of the cooling of the mantle changes mantle changes thethe magma’smagma’s densitydensity,, and the and the force of force of gravitygravity sets the sets the

convection convection currents in currents in motionmotion..

Convection AnimationOcean currents

C. C. Alfred WegenerAlfred WegenerFirst, German scientistFirst, German scientistSecond, 1910 proposed Second, 1910 proposed

continental drift theorycontinental drift theory1)Once “1)Once “all landsall lands” ”

joined together and joined together and now drifted apartnow drifted apart

2)Called “2)Called “PangaeaPangaea””Third, To prove it, he Third, To prove it, he

studiedstudied

Landforms, Fossils, Landforms, Fossils, ClimateClimate

http://www.ucmp.berkeley.edu/geology/anim1.html

D. Evidence of D. Evidence of LandformsLandforms

Mountain Mountain rangesrangessimilar rock similar rock

patterns patterns found in found in Argentina Argentina and and South South Africa.Africa.

E. Evidence of E. Evidence of FossilsFossilsGlossopterisGlossopteris andand other fossils other fossils

found same patterns in found same patterns in South South America America and and Africa.Africa.

F. Evidence of F. Evidence of ClimateClimate

Tropical Tropical plants plants found in found in

cold cold climatesclimates

G. Why did scientists G. Why did scientists reject Wegener’s reject Wegener’s

Theory?Theory?

Wegener could not Wegener could not provide a satisfactory provide a satisfactory explanation for the force explanation for the force that pushes or pulls the that pushes or pulls the continents.continents.

What was that force?What was that force?