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- 1. Drop Down
The hypothesis of Continental Drift was proposed by (a)
Alfred WagenHarry HensHarry HessAlfred Wegner - 2. Reorder
Order the pictures of Pangaea from oldest to present day.
- 3. Drag and Drop
The gradual movement of the continents across the earth's surface through geologic time is known as (a) .
Continental DriftContinental shelfContinental tectonicsContinental plates - 4. Multiple Choice
Which LANDMASS do you think WAS located over the south pole in the time of PANGAEA due to the evidence of glacier grooves found there?
Australia
Antarctica
Africa
North America
- 5. Match
Match the following Climate Clues
Glacier grooves match up on neighboring continents
Fossil clues
Plant and animal evidence found on continents seperated by oceans
Rock clues
Hardened magma of the same chemistry and age
Continental shape clues
Continents seem to fit together like puzzle pieces
- 6. Multiple Choice
Why was Wagener's hypothesis rejected by the scientific community?
He needed 5 pieces of evidence
He was a geologist
He couldn't understand how fossils could be on seperated continents
He couldn't explain what force was moving the landmasses
- 7. Multiple Choice
The navy officer who discovered that the middle of the Atlantic ocean had a mountain range
Harry Hens
Henry Hess
Henry Hens
Harry Hess
- 8. Multiple Choice
Which device was used to map the seafloor?
echo sounder
Sonar
digital camera
magnetic device
string with weights
- 9. Multiple Choice
What do the different colored stripes represent in the picture?
the ocean crust reversal
formation of new sea plants
the reversal of the plates
the reversal of the poles
- 10. Multiple Choice
What is it called where the older oceanic crust descends UNDER the continental crust?
basal drag
subduction
convection current
ridge push
- 11. Multiple Choice
Which answer choice is NOT evidence of Seafloor Spreading?
Temperature of rock increases the farther from the ridge.
The age of the rock gets older farther from the ridge
Magnetic striping on the seafloor indicates polar reversals
The fossils of same species are found on separated continents
- 12. Labeling
Place the two labels on the picture that they represent.
answer choicesDeep Sea Trench
Youngest Ocean Floor
- 13. Drop Down
Harry Hess proposed that the ___ moved like conveyor belts and carried the continents.
(a)
ocean floorcontinentsmid-ocean ridgesseafloor spreading - 14. Labeling
Label the ages of the rock on the map
answer choicesoldest ocean rock
youngest ocean rock
- Answer choicesTagsAnswer choicesTags