Forces That Shape The Earth

The theory of _______ states that the Earth's surfaces is made up of a number of rigid plates that move on top of the fluid, uppermost layer of the mantle.

• Plate Tectonics

• Earth Science

• Magma

• Plates

Tags

NGSS.MS-ESS2-3

__________ form where plates collide, move away from each other, or slide past eachother.

• streams and ponds

• oceans and rivers

• mountains and valleys

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Earth's plates float on the surface of Earth's _____.

• crust

• mantle

• core

Tags

NGSS.MS-ESS2-3

Plates formed of continental crust are ______ than the fluid rock of the mantle.

• less dense

• more dense

The continental crust displaces some of the mantle below it until an equilibrium is reached, which is called _____.

• force

• balance

• isostasy

• erosion

If the continental crust gets thicker, it will _____ deeper into the mantle, but the mantle will also push up on the thicker crust until a balance is reached.

• not move

• float

• rise

• sink

Weathering and erosion remove the top part of a mountain. After this happens, the crust rises to maintain _____.

• forces

• balance

• isostasy

• Plate Tectonics

Tags

NGSS.HS-ESS1-5

The mountain stops moving when the mass of the mountain equals the mass of the _____ it displaces.

• mantle

• crust

• core

Tags

NGSS.MS-PS2-4

Twenty thousand years ago, part of the Earth was covered by ice, which pushed down on the crust, forcing it to sink into the mantle in a process called _____.

• isostasy

• Plate Tectonics

• subsidence

• sinking

The melting of the glaciers and the draining of the water upset the ______ balance, and the crust started moving.

• isostatic

• subsidence

• plate