Unit 5 Geology Lessons 1-5

What is a catastrophe?

• A small, pleasant event

• A terrible, sudden event

• A slow, gradual change

• A minor inconvenience

What does it mean to erupt?

• To slowly melt

• To send out rock, lava, and ash in a sudden explosion

• To freeze over

• To calm down

Who is a geologist?

• A scientist who studies stars

• A scientist who studies the makeup of the earth and the forces and processes that shape and change it

• A scientist who studies plants

• A scientist who studies animals

What is continental drift?

• A process in which continents slowly move over time on the surface of the earth

• A sudden movement of continents

• A process where continents sink

• A process where continents disappear

What does dense mean?

• Light and airy

• Thin and fragile

• Thick or heavy

• Transparent

What is a seismic wave?

• A gentle breeze

• A surge of energy traveling out from an earthquake’s source through the earth

• A wave in the ocean

• A sound wave

What is basalt?

• A type of soil

• A light, fluffy rock

• Heavy, dense rock formed from cooled, hardened lava

• A type of sand

What is an ocean trench?

• A shallow pool of water

• A narrow, extremely deep valley formed when the seafloor dips down as one tectonic plate slides under another

• A mountain under the sea

• A flat area on the ocean floor

What is plate tectonics?

• A theory that Earth’s crust and the solid top part of the mantle are broken up into sections that fit together but move against each other

• A theory about the weather

• A theory about the stars

• A theory about the ocean

What is a tsunami?

• A small ripple in a pond

• A gentle wave in the ocean

• A gigantic wave of seawater caused by an earthquake in oceanic crust

• A wave caused by the wind