Volcanoes
Could a volcano pop up where we live?
No
Landslides can be caused by __________.
heavy rain, erosion, steep slopes, or earthquakes
weathering ______ it
breaks
erosion ______ it
moves
What is the Brandeis Elementary mascot?
Bears
Volcanoes always occur in ________.
Clusters or groups
True or False: Landslides only occur on mountainsides.
False (they can occur anywhere there are unstable slopes/hills)
Which minerals weather faster: soft minerals like calcite or hard minerals like quartz.
soft minerals
deposition _______ it
drops
What percent of volcanoes are in the Ring of Fire?
75%
What is one thing you should look for when watching for a landslide?
slope less than 34 degrees, a site with lots of rain, loose rocks
How does water get into rocks?
cracks in the rocks
True or False: Deposition only occurs with sediment moved by water?
False (it can occur with wind, gravity, glaciers, etc)
What is another name for basalt?
Lava rock
Name one way communities can help prevent damage from landslides.
Stabilize slopes, redirect water drainage, build retaining walls/nets, avoid building on steep slopes
Name one way erosion moves sediment?
Wind, running water, glaciers, or waves
Why do we find basalt in a place like Virginia?
There are dead or extinct volcanoes there.
What state has active volcanoes?
Hawaii
What is the steepest angle that is safe to build a house on?
(less than) 34 degree angle
Name one cause of weathering?
ice wedging, tree roots, temperature changes, water expansion, moving water
Where does deposition happen when rivers slow down?
floodplains or deltas