Introducing Earth

Which of Earth's layers is the thickest?

• the crust

• the mantle

• the outer core

• the inner core

Which part of Earth contains most of its mass?

• the biosphere

• the hydrosphere

• the atmosphere

• the geosphere

Which part of Earth contains plates?

• hydrosphere

• atmosphere

• core

• lithosphere

Tags

NGSS.MS-ESS2-3

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle

Holes drilled several kilometers into Earth's crust provide direct evidence about Earth's interior in the form of

• seismic waves.

• rock samples.

• liquid iron.

• volcanic eruption.

Earth's inner core is

• a dense ball of solid metal.

• a layer of molten metal.

• a layer of hot rock.

• a layer of rock that forms Earth's outer skin.

A river flowing across a wide flood plain begins to form looplike bends called

• rills.

• meanders.

• outside curves.

• deltas.

Tags

NGSS.MS-ESS2-2

Water erosion begins when runoff from rainfall flows in a thin layer over the land in a kind of erosion called

• mass erosion.

• sheet erosion.

• creep.

• gullying.

Tags

NGSS.MS-ESS2-4

The process in which rock fragments freeze to the bottom of a glacier and then are carried away when the glacier moves is called

• plucking.

• surging.

• valley widening.

• abrasion.

Tags

NGSS.MS-ESS2-2

The energy that produces ocean waves comes from

• the rise and fall of the tides.

• rivers flowing into the ocean.

• wind blowing across the water's surface.

• rock falling into the ocean along the shore.

Tags

NGSS.MS-PS4-1