Sprint Flashcard 2

Front

________________ is a dark silvery mineral that has metallic luster, 90 degree cleavage, and a dark streak.

Back

Galena

Front

What do scientists think causes the Earth's magnetic field? Options: the density of iron minerals in the earth, the iron and nickel deposits in the mantle, the liquid outer core, the solid iron and nickel inner core

Back

the liquid outer core

Front

Sea floor spreading is caused by: conduction currents in the mantle, magma plumes that rise through the mantle, the movement of continental plates, convection currents in the mantle

Back

convection currents in the mantle

Front

Which scientist came up with the Theory of Plate Tectonics?

Back

Tuzo Wilson

Front

What type of boundary is formed when tectonic plates slide past each other? Options: Convergent, Slide-Slip, Transform, Divergent

Back

Transform

Front

When a continental plate collides with an oceanic plate, what type of boundary does it form? Options: Transform, Slide-Slip, Convergent, Divergent

Back

Convergent

Front

When the sun shines on the earth, what type of heat transfer happens?

Back

Radiation

Front

Hot melted rock inside the earth is called lava.

Back

False

Front

When one tectonic plate slides under another tectonic plate, the process is called

Back

Subduction

Front

When rock is heated by the earth's core it becomes

Back

less dense