Volcano Patterns
Where do we find most of the world's volcanoes
Along the edges of continents/the ocean
This type of volcano is wide and flat, shaped like a warrior's shield.
Shield Volcano
The process of breaking big rocks down into smaller pieces
weathering
This type of rock is formed from cooled magma or lava.
Igneous Rock
A scientist who studies rocks and the Earth?
Geologist
What is the name of the horsesoe-shaped pattern of volcanoes around the Pacific Ocean?
The Ring of Fire
This type of volcano is tall, shaped like a cone, and has explosive eruptions
Cone Volcano
Erosion
This rock type is made of layers of sand, mud, and pebbles pressed together.
Sedimentary Rock
True or False:
Mountains last forever and never change
False - They are constantly being weathered down.
If you see a map of volcanoes and earthquakes, they usually appear in...
A) Random spots
B) Lines clusters
B- Lines/Cluster
What makes a volcano "explode" rather than just flow?
-Think of the lava we made in class
Trapped gas bubbles in thick lava.
When water gets into cracks in a rock, freezes, and expands it is called ______.
Ice Wedging
These rocks are formed when heat and pressure change one rock into another.
Metamorphic Rock
What did your town look like 100 million years ago?
How do we know?
By looking at fossils and rock layers
Are there more volcanoes in the middle of the United States or along the West Coast?
West Coast
Basalt rock usually comes from this "thin" and "runny" type of lava.
Thin, runny lava
When rocks and soil suddenly slide down a steep slope, it is called a ___________.
Landslide
Which type of rock are you most likely to find a fossil in?
Sedimentary (The heat/pressure of other types would destroy them)
Why do rocks at the bottom of a waterfall look smooth and rounded
Constant weathering from the moving water
Why is it unlikely for a volcano to "pop up" in the middle of a flat field in the Midwest?
Volcanoes usually form where tectonic plates meet, not in the middle of a plate.
Felsite is a light-colored rock that usually come from this "thick and "trapped gas" lava.
Thick, sticky lava
Name two things engineers can do to protect a house from a landslide.
Retaining walls, drainage pipes, planting vegetations (Roots hold soil).
1. Melt/Cool (Igneous)
2. Break/Press (Sedimentary
3 Heat/Pressure (Metamorphic)
What is the difference between magma and lava
Magma is underground
Lava is on the surface