GBC Year 9 Science The changing Earth

The image shown here represents an earthquake event. What do we call this kind of image?

(Image: James St. John, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons)

• epicentre

• seisometer

• seismogram

• seismic wave

What is the name of the scientist responsible for the theory of continental drift?

• Stephen Hawking

• Francis Crick

• Sir Isaac Newton

• Alfred Wegener

What type of plate boundary does the image represent?

• reverse plate boundary

• destructive plate boundary

• transform plate boundary

• constructive plate boundary

What is the name of the supercontinent that broke apart to form the continents known today.

Image: User:Kieff, CC BY-SA 3.0 <http://creativecommons.org/licenses/by-sa/3.0/>, via Wikimedia Commons

• Columbia

• Eurasia

• Pangaea

• Oceania

Which of the following is evidence used to support the theory of continental drift?

• The continental outlines are like pieces of a jigsaw puzzle.

• The artic and antarctic are both covered in ice.

• Fossils are found on all continents.

• Volcanoes are found across the ring of fire.

What feature did Harry Hess find on the ocean floor?

• There are deep trenches.

• There was no sign of tectonic activity.

• It is uniform and sandy.

• There are no ridges.

What technology was used by Hess to create a map of the ocean's floor?

• X-ray

• Photography

• Satellite

• Sonar

What is the correct order of the layers of the Earth, starting from the surface and moving towards the centre?

• crust, mantle, outer core, inner core

• mantle, crust, outer core, inner core

• outer core, inner core, crust, mantle

• inner core, crust, mantle, outer core

The Earth's crust is split into large slabs of rock. What are these called?

• continents

• crust

• tectonic plates

• ridges

There are currents in the mantle of Earth that drive tectonic plate movement. What are these currents known as?

• alternating currents

• convection currents

• direct currents

• jet streams