Earth Science 3

There are _________ types of boundaries.

When one tectonic plate sinks beneath another:

Along what feature on the ocean floor does seafloor spreading begin?

You can run faster than a pyroclastic flow:

Who was the first person to suggest Earth has tectonic plates?

TRUE OR FALSE: This is a cone volcano.

Type of volcano common along convergent boundaries

New Zealand is on the boundary of which 2 plates?

What kind of plate movement is shown in this picture?

B shows what?

Hot, molten rock that has erupted into water or the atmosphere:

S waves

What type of volcano is Hawaii?

Which would NOT form a volcano?

Deep underwater canyon

What kind of plate movement is shown in this picture?

Continually adds new material to the ocean floor

A large depression formed when a volcano's summit collapses is a

Viscosity of magma is based on its

A lot of trapped gasses would make a ______________ explosion.

Which type of earthquake wave does not travel through liquids?

The process by which the ocean floor sinks beneath a deep ocean trench and back into the mantle

Weak point in the earth's crust where magma is forced through the surface:

What kind of plate movement is shown in this picture?

Where two plates meet is called 

Which of the following is not one of the 3 types of evidence for seafloor spreading?

F is made up of what?

TRUE OR FALSE: This is a dome volcano.

The Himalayas are examples of ....

The molten layer of the Earth the plates move on is the ____________.

Earthquakes occur at a ......

What is the name for the red pattern on this map?

All volcanoes form at plate boundaries:

A liquid's resistance to flow is

P waves

Which is the magma chamber?

Gasses trapped in magma include all of the following except

Hot, molten rock inside the earth:

As subduction occurs, crust moves______ a deep ocean trench

Earth's ocean floors move like a conveyer belt, carrying the continents along with them

Which layer do scientists know is liquid because s waves do not travel through it?

Oceanic Crust is _____________ than continental crust.

Where would you expect to find the oldest rock on the ocean floor?

Humans have drilled to the centre of the Earth.

Element that makes magma "sticky" and traps lots of gasses:

S waves are called secondary waves because

Tsunami are usually caused by what?

What layer is 'a'?

Every earthquake releases

Layer b is what?

Earthquakes and volcanoes are found in narrow......

What kind of volcano is this?

The earth's crust is broken into pieces called

P waves are called primary waves because

A volcano that erupts explosively sometimes, and quietly sometimes:

Steep-sided, narrow based volcano:

The "Ring of Fire" circles which ocean?

Which of these is lava?

Which of the following forms at a constructive boundary?

When two tectonic plates move away from one another, the boundary between them is called

Ocean Trenches form at a ......

What is A?

Fold mountains form at a ......

When two tectonic plates slide past each other, the boundary between them is called

What kind of plate movement is shown in this picture?

What is 'c'?

A rush of gasses, ash and debris flowing down the side of a volcano:

Undersea mountain chain at which seafloor spreading occurs is called

 The boundary where two tectonic plates meet and one subducts under another is called

Air quality is a serious effect of

S waves stop at the outer core.

Hot spots are found where the crust....

Earthquakes waves...

A device that bounces sound waves off underwater objects