Category 1
What is erosion?
Erosion is a process where natural forces like water, wind, ice, and gravity wear away rocks and soil.
What is the major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur.
The Ring of Fire
What is ice wedging?
During ice wedging, water fills in cracks in a rock and then freezes. When it freezes, water expands, so it pushes the rock apart.
How might rocks appear after making their way down a large mountain?
Smoother, rounder, smaller.
Yes.
What is weathering?
Weathering is the breaking down of rocks, soil, and minerals
Do mountains last forever? Why or why not?
No, mountains start as solid rock but the rock breaks into smaller pieces and the pieces roll down the mountain.
Why are some volcanoes cone-shaped and some shield-shaped?
Cone-shaped volcanoes have thick lava that oozes out slowly, forming a hill. Shield-shaped volcanoes have lava that is thin and runny, so the lava spreads out farther.
What is root wedging?
Root Wedging is the process in which roots grow into the cracks in rocks and force the cracks open as they continue to grow.
What is a landslide?
Landslides are made of rocks and soil that slide down a slope.
Why might you find lava rocks so far away from the Ring of Fire?
The lava rocks could come from an active volcano that’s not near the Ring of Fire or from an inactive volcano that doesn’t erupt anymore.
What causes a landslide?
Earthquakes, rain
When you look at a world map, where are most of the volcanoes located? What pattern do they form?
Most of the volcanoes form a horseshoe shape around the Pacific Ocean called the Ring of Fire.
Which volcanoes are more likely to explode, the ones with thick lava or thin lava? Why?
Volcanoes with thick lava trap the gas bubbles. Eventually the gas makes the volcano explode. The volcanoes with the thick lava
Imagine you're camping in a hilly area. How do you know if it is safe to camp?
Look to see if there is loose rock and if it was or will be raining.