Volcanoes
Where is a volcano most likely to pop up?
Volcanoes are most likely to pop up along the Pacific Ocean coastline or near the Ring of Fire.
Name one thing that might cause a landslide.
Water (from rain, a sprinkler, etc.), a steep hill (gravity) soil erosion
Why do we sometimes find lava rocks in places there are no active volcanoes?
The lava rocks were probably made by a volcano that is now extinct.
What is weathering?
Weathering is when rocks break apart.
Why are some volcanoes shaped like a shield?
The thin lava flows and spreads creating a low sloping shield shaped land form.
How can you protect yourself from a landslide?
Build a barrier at the bottom of the slope. Evacuate the area if it has been raining a lot. Build your home underground.
How might rocks at the bottom of a mountain look different than the rocks at the top of a mountain?
They may be smoother. They may be smaller.
How can weathering happen?
Ice wedging, root wedging, wind, water, gravity.
What land forms might you expect to see if you were near an extinct volcano?
You would probably see hills or mountains.
How can you prevent a landslide?
You could plant trees and grasses on the slope, and the roots from these plants might hold the dirt in place. You could build a drain system to carry rainwater away. You could ask people at the top of the slope not to water their yards too much.
True or false? Mountains are made from rock?
True.
True or false? Weathering can change the size and shape of rocks.
True.
True or false? Most earthquakes happen near active volcanoes?
True
True or false? A landslide is a natural hazard like earthquakes and floods.
True
What kind of rocks does the thin lava from shield volcanoes make?
Basalt
Name a state that has no, or very little, ice wedging.
Any state that rarely, if ever, has temperatures below freezing. Texas, Hawaii, Florida
Why are some volcanoes shaped like a cone?
The thick lava piles up and creates a cone shape.
Where are landslides most likely to occur.
Most landslides occur on steep slopes like mountainsides.
What kind of rocks does the thick lava from cone volcanoes make?
Felsite
Name a state where both ice wedging and root wedging might happen.
Any state that has temperatures below freezing in the winter.