Year 9 Earth Science Revision

What kind of plate boundary is shown here?

• divergent
• convergent
• transform
• subducting

The layer of the earth labelled C is called

• Mantle

• Crust

• Inner core

• Outer Core

What does the theory of continental drift state?

• The continents were once joined in a super-continent and have moved over time
• Continents are stationary and do not move
• The Earth is broken into lithospheric plates that move due to convection currents
• none of the above

CHOOSE ALL THAT APPLY: Which of the following clues provided evidence to support Wegener's Continental Drift Theory?

• similar rocks on different continents

• fossils of identical plants and animals on different continents

• ocean currents making travel easier in the oceans

• Favorable people living on different continents

Which of the following would be the most likely cause of a volcanic eruption?

• temperature

• salinity

• sub-surface pressure

• atmospheric pressure

Divergent boundaries occur when two plates are

• moving towards each other

• moving away from each other

• sliding past each other

What was the process responsible for Pangaea breaking up into the continents we know of today?

• Continental Drift

• Global Warming

• Earthquakes

Wegener theorized that all the continents were once together. What did he call that large landmass?

• Africa

• Panama

• Pangaea

• Panorama

• Mesoamerica

Where do most earthquakes, volcanoes & mountains occur or form?

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How do plates move at DIVERGENT boundaries?

• Collide (together)

• Move apart

• Slide past each other