DCA 4 review part 1 7th grade 24-25

DCA 4
7th grade Science 24-25

• ​Plates rip apart at a divergent plate boundary, causing volcanic activity and shallow earthquakes;

• At a convergent plate boundary, one plate dives (“subducts”) beneath the other, resulting in a variety of earthquakes and a line of volcanoes on the overriding plate;

• Transform plate boundaries are where plates slide laterally past one another, producing shallow earthquakes but little or no volcanic activity.

The San Andreas Fault is found in California and the plates are sliding past each other. Earthquakes are common, but not volcanoes.

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​San Andreas
Fault

Multiple Choice

Which two plates form the San Andreas Fault?

• The Atlantic plate and the Indian Plate

• The North American Plate and the Pacific Plate

Multiple Choice

A __________ is the boundary between tectonic plates that are colliding.

• Transform boundary
• Convergent boundary
• Divergent boundary
• Tectonic boundary

Multiple Choice

_________ is a region along a plate boundary where one plate moves under another plate.

• A convection zone

• A plume zone

• A hot spot

• A subduction zone

Multiple Choice

________________ is a curved chain of volcanic islands.

• An island arc

• A hot spot

• A mid ocean ridge

• A subduction zone

Multiple Choice

What type of plate boundary is at the mid–ocean ridge?

• convergent
• divergent
• transform
• unknown

Multiple Choice

Which plate boundary is most common for volcanic formation (hint: subduction zone)?

• Divergent

• Convergent

• Hot Spots

• None of the above

Multiple Choice

_________ explain the heat flow and movement of molten rock within the interior of the Earth.

• Continental Drift

• Convection Currents

• Plate Tectonics

• Gravity

Multiple Choice

Plate movement is caused by ____________.

• the rotation of the Earth

• convection currents in the mantle

• ocean tides

• the moon's gravity

Multiple Choice

In convection, COOL air

• Rises
• Sinks

Multiple Choice

In convection, WARM air

• Rises
• Sinks

Multiple Choice

Boiling Water

• Conduction

• Convection

• Radiation

Multiple Choice

What are crustal features at continental-continental convergent boundaries?

• Trenches

• Island arcs

• High mountain ranges

• Volcanic arcs

Multiple Choice

Which of the plate boundaries could likely form mid ocean ridges?

• Convergent

• Divergent

• Transform

• Subduction

Multiple Choice

What type of event will occur at this boundary?

• Earthquake
• Volcano Eruption
• Tornado
• Mountain Building

Multiple Choice

What geologic feature is most likely to form at a divergent boundary?

• delta
• rift valley
• trench
• plateau

Multiple Choice

What forms when two oceanic plates diverge?

• moutains
• rift valley
• mid-ocean ridge
• deep-ocean trench