Earthquakes
Volcanoes
Glaciers
Canyons
Plates + Layers
100

What is a boundary. 

border or edge!

100

Whats lava? 

magma that flows from a volcano!

100

How is a glacier formed?

Glaciers begin forming in places where more snow piles up each year than melts. Soon after falling, the snow begins to compress, or become denser and tightly packed. It slowly changes from light, fluffy crystals to hard, round ice pellets. New snow falls and buries this granular snow!

100

What does it mean when something expands?

got larger!
100

How many layers does the earth have?

Four layers!

200

Whats a fault?

a break in Earth's crust where blocks of rock are moving in different directions!

200

Whats magma?

hot, liquid rock that comes from Earth's mantle!

200

What makes a glacier slippery? 

Meltwater!

200

Whats weathering?

the breaking down or wearing away of rocks by water or wind!

200

List three facts about earths plates. 

(At least get one right!)

There are eight large plates, they are always moving, they are broken into many irregularity shapes!

300

Name three ways that plates can cause earthquakes?

Colliding, moving apart, sliding past each other!

300

Whats a chamber?

a pocket under the volcano that fills with magma! 

300

Whats a basin?

a large hole or depression in the ground that can contain water!

300

Whats erosion?

The moving of rocks and soil by water, wind, ice or gravity!

300

Whats the earths first layer called?

The crust!

400

A measure of the amount of energy released by an earthquake?  

magnitude!

400

small pieces of broken rock, lava, and other materials blown out during an eruption.

A debris!

400

ridges of loose rock and soil created by a glacier and left behind when the glacier melts. 

moraines!

400

Rainwater can carve ______ in the soil.

a channel!

400

Whats the mantle?  

The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume!

500

What tool records movement in the earths crust?

seismometer!

500

An opening in a volcano through which lava can flow? 

A vent!

500

movement backwards.

retreat!

500

Over time, erosion and weathering can cause canyons to become __________.

deeper and wider! 

500

Whats the difference between the outer core and the inner core? 

Ones a solid and ones a liquid!

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