H.M.H - FC - Unit 5 Lesson 1 E/E 4 Explaining Plate Motion

What is the main cause of the ground beneath us being in constant motion?

• Tectonic plates moving

• Volcanic eruptions

• Weather changes

• Human activities

What is convection?

• The transfer of heat through direct contact.

• The movement of fluid caused by differences in temperature and density.

• The process of heat transfer through electromagnetic waves.

• The circulation of air caused by wind patterns.

What are convection currents?

• Movements of matter due to density differences.

• Static movements of air in a room.

• The flow of electricity through a conductor.

• The transfer of heat through direct contact.

What is a fault?

• A fracture in the Earth's crust where blocks of land have moved.

• A type of rock formation that is completely solid.

• A natural disaster caused by volcanic activity.

• A layer of soil that is rich in nutrients.

What is magma?

• Molten rock located beneath the Earth's surface.

• Solid rock found in the Earth's crust.

• Gas released during volcanic eruptions.

• Liquid water found in underground reservoirs.

What is plate tectonics?

• The study of ocean currents and their effects on climate.

• The theory that explains the movement of the Earth's plates and their interactions.

• A method of measuring earthquakes and their magnitudes.

• The process of erosion and sediment deposition in geological formations.

What is subduction?

• The process where one tectonic plate moves under another and sinks into the mantle.

• The process of two tectonic plates colliding and forming mountains.

• The movement of tectonic plates away from each other, creating new crust.

• The sliding of one tectonic plate past another without significant vertical movement.

What is a volcano?

• A mountain that is always covered in snow.

• An opening in the Earth's surface where molten rock, ash, and gases escape.

• A large body of water surrounded by land.

• A type of rock formed from cooled lava.

What can the movement of tectonic plates cause?

• Sudden events like volcanic eruptions and earthquakes.

• Gradual changes in climate patterns.

• Increased agricultural productivity.

• Formation of new continents.

What is the asthenosphere?

• The rigid outer layer of the Earth that includes the crust and upper mantle.

• The semi-fluid layer beneath the lithosphere where tectonic plates move.

• The solid inner core of the Earth composed mainly of iron and nickel.

• The layer of the atmosphere where weather occurs.