Question

tsunamis
tsunamis are large waves that are usually caused as the aftermath of an earthquake or volcanic eruption. the abrupt movement in the ocean floor, causes waves to form in the middle of the ocean. these are known as \seismic waves.\ as the wave travels towards shore, it begins to gain its massive height. most tsunamis occur in the pacific ocean. this is due to the fact that it is known as earth’s
ing of fire,\ or the area where most tectonic shifts occur such as volcanic eruptions and earthquakes. once the lowest part of the wave hits, it creates a vacuum effect. when this happens, the sea water retreats back, exposing the bare sea floor. this is warning that the tsunami will hit shore.
highlight in green the part of the text that states the definition of a tsunami.
highlight in red the part of the text that describes what \seismic waves\ are.
highlight the part of the text that describes what happens when the lowest part of the wave hits.
highlight in blue the part of the text that explains why most tsunamis occur in the pacific ocean.
constructed response using r.a.c.e. strategy
what are tsunamis and how are they formed?
r estate the question
a nswer the question
c ite evidence from the text
e xplain your answer

Explanation:

To answer "What are tsunamis and how are they formed?" using R.A.C.E:

• Restate (R): The question is about tsunamis' definition and formation.
• Answer (A): Tsunamis are large ocean waves, formed by abrupt ocean - floor movement from earthquakes/volcanic eruptions.
• Cite (C): Text evidence: "Tsunamis are large waves that are usually caused as the aftermath of an earthquake or volcanic eruption. The abrupt movement in the ocean floor, causes waves to form in the middle of the ocean."
• Explain (E): The abrupt ocean - floor shift (from quakes/eruptions) creates seismic waves, which then develop into tsunamis as they move toward shore.

Answer:

• Restate the Question: What are tsunamis and how are they formed?
• Answer the Question: Tsunamis are large ocean waves caused by abrupt ocean - floor movement from earthquakes or volcanic eruptions.
• Cite Evidence from the Text: "Tsunamis are large waves that are usually caused as the aftermath of an earthquake or volcanic eruption. The abrupt movement in the ocean floor, causes waves to form in the middle of the ocean."
• Explain Your Answer: The sudden shift in the ocean floor (due to earthquakes or volcanic eruptions) generates seismic waves. These waves then grow in height as they travel toward the shore, resulting in the formation of tsunamis.