2 M2 - TED Ed Talks - How Tsunamis Work

• Engels
• Middelbare school
• havo, vwo
• Leerjaar 2

How Tsunamis Work

What to do?

You're going to watch a short video explaining how tsunamis work. Afterwards you'll answer a few questions about the video, make sure you pay attention!

What do you need?

- laptop

- headphone

- dictionary (ask your teacher)

VOCABULARY

Before you're going to watch the video, you're going to look up some difficult words that are used in the video. Make sure you use your dictionary. 

Translate (Dutch) and explain (English) what the word means: to retreat

Translate (Dutch) and explain (English) what the word means: gravity

Translate (Dutch) and explain (English) what the word means: to level

Translate (Dutch) and explain (English) what the word means: trough

Translate (Dutch) and explain (English) what the word means: crest

Translate (Dutch) and explain (English) what the word means: debris

Translate (Dutch) and explain (English) what the word means: to besiege

Translate (Dutch) and explain (English) what the word means: alert

Translate (Dutch) and explain (English) what the words mean: to divert

Translate (Dutch) and explain (English) what the words mean: to originate

Translate (Dutch) and explain (English) what the word means: convenient

Translate (Dutch) and explain (English) what the word means: wrath

Translate (Dutch) and explain (English) what the word means: surface

Translate (Dutch) and explain (English) what the word means: wave shoaling

Next activity

In the next slide you will watch a video, listen carefully! 

You'll have to answer a few questions about the contents.

Tsunamis are commonly known as ________

1. huge waves
2. tidal waves
3. catastrophic waves
4. big waves

Ocean waves are limited in their ___ and ___.

1. size and speed
2. dimensions and pace
3. height and velocity
4. magnitude and rate

An earthquake on the ocean floor is caused when the ___ ___ of the Earth's surface slip.

1. enormous pieces
2. massive segments
3. giant sections
4. tectonic plates

This energy travels up to the surface, ___ water and raising it above the normal sea level.

1. compressing
2. evaporating
3. displacing
4. absorbing

Because there is less water to move through, this massive amount of energy is ___.

1. dissolved
2. absorbed
3. compressed
4. evaporated

Tsunami means “___ ___” in Japanese.

1. harbor wave
2. ocean surge
3. seismic wave
4. tidal wave

The 2004 Indian Ocean tsunami was one of the deadliest ___ ___in history.

1. traffic accidents
2. natural disasters
3. volcanic eruptions
4. celebrations

When nature is too powerful to stop, the ___ ___ is to get out of its way.

1. silliest option
2. most dangerous option
3. safest course
4. least effective strategy

True or false?

You're going to watch the video again and choose whether the given statements are true or false.

Good luck!

The Persian soldiers who were trying to invade Potidaea were drowned by a tsunami.

1. True
2. False

Tsunamis are caused by the gravitational pull of the Moon and Sun.

1. True
2. False

Tsunamis have low and high points just like regular waves.

1. True
2. False

Normal ocean waves only involve motion of the uppermost layer of the water.

1. True
2. False

The energy that causes normal ocean waves comes from underwater.

1. True
2. False

An earthquake on the ocean floor is the most common cause of a tsunami.

1. True
2. False

A tsunami can be easily noticed even when it is far from the shore.

1. True
2. False

When a tsunami approaches the coast, it travels faster.

1. True
2. False

A tsunami can travel a mile or more into the mainland.

1. True
2. False

The wall surrounding the power plant in Fukushima was high enough to protect it from the tsunami.

1. True
2. False

Evaluation

Show us you understand the words that you learned in this LessonUp en from the TED Ed video. 

1. 1. The _____________ of the situation became apparent as the consequences grew more severe..

2. After the storm, the beach was covered in _____________ from the wreckage.

3. To avoid traffic, we decided to  _____________ our route and take the scenic road instead.

 

retreat

gravity

level

trough

debris

besiege

alert

divert

originate

crest

1. The soldiers decided to  _____________ when they realized they were outnumbered.

2. 4. The tradition of storytelling can _____________ from ancient cultures.

3.The wave reached its  _____________ just before crashing onto the shore.

 

retreat

gravity

level

trough

debris

besiege

alert

divert

originate

crest

1. The government needed to _____________ the river to prevent flooding in the town.

2. The enemy army planned to _____________ the castle until it surrendered.

3. The weather service issued a severe storm _____________ for the region.

 

retreat

gravity

level

trough

debris

besiege

alert

divert

originate

crest

What have you
learned in this LessonUp?

Well done!