Show:
The Earth's Layers
Volcanoes
Earthquakes
Slow Changes
Landslides
100
Earth is made up of _______ layers. (Do NOT count the atmosphere)
What is four.
100
This is where Magma is formed.
What is inside the Earth inside the Mantle.
100
The Earth's Crust and mantle have how many tectonic plates?
What is 20.
100
_________ is the movement of weathered rock from one place to another.
What is erosion.
100
What is one dangerous effect of a landslide? a. mud on a hillside could dry up b. a road could collapse c. heavy rains soak the ground
What is b.
200
The outermost layer is called ___________.
What is the crust.
200
____________ volcanos are full of magma and erupt very slowly. The thick lava doesn't travel far.
What are Acid Lava Cone Volcanoes.
200
Earthquakes occur when ____________ .
What is the plates rub together.
200
________ is the process of breaking down rocks into smaller pieces.
What is Weathering.
200
What moves quickly downhill during a landslide? List at least 2 things.
What is wet soil, mud, rocks, debris, trees, bushes etc.
300
Lava is mostly made up of _______ and _______, which is why some geologists call it molten metal instead of molten rock.
What is iron and nickel.
300
These are the most common kind of volcano.
What are Composite Cone Volcanoes. They are very tall and erupt with runny lava followed by explosive lava.
300
Where do most of the world's earthquakes occur? (not a specific place, city, town. Think general.)
What is on faults.
300
__________ weathering is when substances cause a change in color or shape of the surface of a rock.
What is Chemical.
300
What causes landslides to happen?
What is heavy rainfall.
400
This layer has 50 miles of hard rock and then 150 miles of super-heated molten rock.
What is the mantle.
400
Volcanoes that have not erupted for some time are called ________.
What is dormant.
400
At the edges of the tectonic plates you will find _______.
What is faults.
400
_________ weathering is the physical process of breaking down big rocks into little rocks.
What is Mechanical.
400
If a landslide occurs in an area that includes ________, it could break water lines, gas lines, or electrical lines.
What is buildings or houses.
500
This layer is 9,000 -13,000 degrees Fahrenheit but because of the high pressure the rocks and minerals cannot melt.
What is the inner core.
500
Where would you find the most volcanoes in the United States? (list 5 states)
What are Alaska, Washington, Oregon, California, and Hawaii.
500
Scientists use ____________ to measure earthquakes.
What is a seismograph.
500
What are at least four causes of weathering.
What is Ice, Water, Wind, Plants, Animals(people), Heat(sun).
500
What are 3 examples from the text of how a landslide could cause serious damage.
What are bury homes, badly injure people/animals, roads buried or covered, cars crushed, fires.