Copy of G4_U5_L14_22-23

Grade 4 | Unit 5: Geology

Lesson 14:
Under the Sea,
Part 2

Our Learning
Goals

Unit 5, Lesson 14: Under the Sea, Part 2

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Start of Lesson

Reading

Language

End of Lesson

What are our learning goals?

Unit 5, Lesson 14: Under the Sea, Part 2

I can explain the unique characteristics of geological features on
the seafloor and their impact.

I can identify and use multiple adjectives in the correct
sequence.

What are our learning goals?

Unit 5, Lesson 14: Under the Sea, Part 2

I can use words with the suffixes –ly and –y and words with the
roots graph and rupt in sentences.

I can practice spelling targeted words.

Reading
About It

Unit 5, Lesson 14: Under the Sea, Part 2

The Changing Earth

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Start of Lesson

Reading

Language

End of Lesson

Unit 5, Lesson 14: Under the Sea, Part 2

Rereading Chapter 9

“Earth’s Undersea World”

Vocabulary

Unit 5, Lesson 14: Under the Sea, Part 2

submersible

rugged

hydrothermal vent

seamount

underlie

firsthand

Vocabulary

Unit 5, Lesson 14: Under the Sea, Part 2

school

The Big
Question

How does the movement
of tectonic plates shape
and change the seafloor?

Unit 5, Lesson 13: Under the Sea, Part 2

Multiple Choice

What is seafloor spreading?

• The process by which new oceanic crust is formed and moves away from the mid-ocean ridge.
• The movement of tectonic plates towards each other
• The process of ocean water receding from the shore
• The formation of new landmass on the ocean floor

Open Ended

What is one reason why the chain of mid-ocean ridges are the most volcanically active in the world?

Multiple Choice

Seafloor spreading explains which of the following? Choose all that are correct.

• the presence of mid-ocean ridges on the seafloor

• Wegener's continental drift theory

• The formation of hydrothermal vents

Open Ended

On p. 84, the author uses a simile when describing the mountain chain formed by mid-ocean ridges, saying it is "like the stitching on a baseball." Explain what this simile means.

Open Ended

Why are scientists interested in hydrothermal vents?

Open Ended

Why are seamounts challenging for scientists to study?

Multiple Choice

How are seamounts related to islands?

• Some seamounts can eventually become islands through volcanic activity and erosion.
• Seamounts are formed by the movement of tectonic plates
• Seamounts have no relation to islands
• Islands are always formed from seamounts

Multiple Choice

Where are you most likely to find an ocean trench?

• subduction zone

• few hundred miles from a subduction zone

• few thousand mile from a subduction zone

Unit 5, Lesson 14: Under the Sea, Part 2

Discussing the
Chapter

Match

Match the following causes and effects.

• Seamount emerges from the ocean's surface

• One tectonic plate slides under another

• Tectonic plates move apart slowly

• Water seeps into the earth's crust and is heated by magma

• Tectonic plates collide

Islands are formed

A trench is formed

Seafloor spreading

Hydrothermal vents are formed

Mountains are formed

• Islands are formed

• A trench is formed

• Seafloor spreading

• Hydrothermal vents are formed

• Mountains are formed

Unit 5, Lesson 14: Under the Sea, Part 2

What word are we learning about?

firsthand

Unit 5, Lesson 14: Under the Sea, Part 2

Making Choices Activity

firsthand

The word firsthand means “coming directly from actually seeing
or experiencing something.”

Looking at
Language

Unit 5, Lesson 14: Under the Sea, Part 2

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Start of Lesson

Reading

Language

End of Lesson

Grammar

Unit 5, Lesson 14: Under the Sea, Part 2

Adjectives

Unit 5, Lesson 14: Under the Sea, Part 2

Morphology

Unit 5, Lesson 14: Under the Sea, Part 2

Suffixes –ly and –y

Roots graph and rupt

Spelling

Unit 5, Lesson 14: Under the Sea, Part 2

End of Activities for Lesson

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Unit 5, Lesson 14: Under the Sea, Part 2