Ocean Origins

Ocean Origins

How did our oceans form?

Open Ended

Where did all the water in our oceans, lakes, rivers, and streams come from?

Mount St. Helens Eruption

• May 18, 1980

• No eruption for over 150 years

• Hot magma/lava heats solid & liquid water trapped in Earth's crust to form gas, the pressure builds ...

• Imagine hundreds of volcanoes erupting for weeks, months, years .....

Multiple Choice

What is Mount St. Helens?

• An inactive volcano

• A rock formation

• An active volcano

• A canyon

Multiple Choice

Where is Mount St. Helens?

Multiple Choice

When did Mount St. Helen erupt?

• July 4, 1978

• March 24, 1980

• August 1,1989

• May 18, 1980

Multiple Choice

How long had Mt. St. Helens been a peaceful mountain before it erupted?

• less than 10 years

• 28 years

• more than 150 years

• more than 10,000 years

Multiple Choice

Is Mount St. Helens still active?

• Yes

• NO

Multiple Choice

Which statement is true about Mount St. Helen's eruption?

• The ash cloud drifted east across the U.S in 3 days and surrounded the earth in 15 days

• The volcano's ash only covered Washington

• There was no ash, just white clouds in this explosion

• The whole world was destroyed by the eruption

Multiple Choice

What is a volcano?

• Something you eat for dessert

• An island with lots of trees

• A mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.

• Something made up from a novel

Multiple Choice

What is lava?

• Diamonds

• Melted Rock

• Something to eat

• Rain and dirt mixed together

Multiple Choice

The Pacific Ring of Fire is an arc around the Pacific Ocean where many volcanoes and earthquakes are formed.

• True

• False

Multiple Choice

Where is Earth's heat energy most concentrated?

• The mantle

• The core

• The clouds

• The crust

Multiple Choice

True or False: The Ring of Fire is a direct result of plate tectonics and the movement and collisions of crustal plates.

• True

• False

Multiple Choice

True or False: About 90% of the world's earthquakes and 15% of the world's largest earthquakes occur along the Ring of Fire.

• True

• False

Multiple Choice

About how many volcanoes are in the Ring of Fire?

• 1 million

• 333

• 1,657

• 452

Where Water?

• Homegrown Hypothesis

• External Origins Hypothesis

Volcanic Outgassing of Water

Multiple Select

What are the most likely sources of Mother Earth's water?

• Thanos

• Comets

• Asteroids

• Volcanoes

Multiple Choice

Scientists think Earth formed _____________ ago.

• 100,000 years

• 4,600,000 years ago

• 4,600 years ago

• 4,600,000,000

Multiple Choice

What was the effect of volcanoes on the Earth's early atmosphere?

• Volcanoes heated up the atmosphere enough to melt icebergs.

• Volcanoes released oxygen.

• Volcanoes released gases like water vapor.

• Volcanoes changed the landscape.

Multiple Choice

This gas was in high concentrations in the early atmosphere, and later condensed to form Earth's oceans.

• oxygen

• carbon dioxide

• sulfur oxides

• water vapor

Multiple Choice

Due to Earth's large size, it did NOT experience intense bombardment from asteroid impacts.

• true

• false

Multiple Choice

Gases in Mother Earth's early atmosphere came from ...

• asteriod impacts

• comet impacts

• volcanic outgassing

• all of these

Multiple Choice

After water vapor condensed to form rain and then gradually accumulated, which of the following was formed?

• Earth's First Atmosphere

• Earth's Second Atmosphere

• Earth's Oceans

• Earth's Continents

Multiple Choice

According to scientists, both Earth and moon are...

• About 1.6 Billion Years Old

• About 4.6 Billion Years Old

• About 9.6 Billion Years Old

• About 14 Billion Years Old

Multiple Choice

Volcanic "outgassings" provided sources of

• water vapor

• carbon dioxide

• nitrogen

• all of the answer choices

Multiple Choice

Where do scientist thing the water from the oceans came from?

• Plants

• Dinosaurs

• Comets

• Rain

Multiple Choice

How do scientist think that early atmosphere was probably formed?

• Gases from volcanoes

• Lava from volcanoes

• Gases released from bacteria

• They are unsure how it is formed

Multiple Select

How much of Mother Earth's surface is ocean?

• around 70%

• 29%

• 97.5%

• 60%

Multiple Choice

How long have the Earth's oceans been here?

• 19 days

• Since that elephant used its trunk

• 4 billion years

• 2 million years

Multiple Select

Which of these is true?

• Sea water is safe and easy to drink

• There are whales living near the coast of Wales

• The first seas came from an elephant's trunk.

• Clouds condense and cause precipitation

Multiple Choice

Which ocean is this?

• Indian Ocean

• Arctic Ocean

• African Ocean

• Atlantic Ocean

Multiple Select

The smallest ocean in the world is the

• Atlantic

• Pacific

• Indian

• Arctic

• Southern

Multiple Select

The largest ocean in the world is the

• Atlantic

• Pacific

• Indian

• Arctic

• Southern

Multiple Choice

How many major oceans are there in the world?

• 7

• 6

• 5

• 4

Multiple Choice

A volcanic mountain that rises above the surface of the water is called ____________

• trench

• island

• mid-ocean ridge

• seamount

Multiple Choice

A volcanic mountain that rises above the surface of the water is called ____________

• trench

• island

• mid-ocean ridge

• seamount

Multiple Choice

Which Great Lake is darker blue?

• Lake Superior
• Lake Erie
• Lake Michigan
• Lake Huron

Multiple Choice

What is another name for a route by water?

• Seaway

• Ocean

• Lake

• River

Multiple Choice

Which port city lies between Lake Erie and Lake Huron?

• Chicago

• Quebec

• Duluth

• Detroit

Multiple Choice

What is the name of the Westernmost port city on the Great Lakes?

• Chicago

• Quebec

• Duluth

• Detroit

Multiple Choice

Which Great Lake lies entirely in the United States?

• Lake Superior

• Lake Michigan

• Lake Erie

• Lake Ontario

Multiple Choice

The St. Lawrence seaway lies between which two countries?

• Africa and Europe

• Mexico and Canada

• Asia and Australia

• Canada and the US

Multiple Choice

What is another name for a route by water?

• Seaway

• Ocean

• Lake

• River

Open Ended

Where did all the water in our oceans, lakes, rivers, and streams come from?