How far can a whisper travel?
What would happen if you screamed in outer space?
Why are some sounds high and some sounds low?
Earth’s Landscape Test Review
Earthquake: A sudden, violent shaking of the ground caused by movement of giant plates in the earth's crust.
Volcano: An opening on Earth's surface that allows molten rock, called magma, to escape from inside the earth.
Tsunami: A huge ocean wave caused by a disturbance in the ocean floor. Usually caused by an underwater earthquake.
Hurricane: A large rotating storm with high wind speeds that forms over warm waters.
Sedimentary Rock: Sedimentary rocks are made when sand and mud gets laid down in layers. Over time, these layers are squashed under more and more layers. Eventually, the layers turn into rock.
Erosion: After pieces of the earth are broken down through weathering, those pieces are moved through Erosion. It’s the process of moving things from one place to another.
Silt: Fine sand, clay, or other material carried by moving water and deposited at the bottom of a body of water like the ocean.
Where are most of the volcanoes in the world?
In a horseshoe shape around the Pacific Ocean, called the ring of fire.
Why are some volcanoes shaped like a shield?
They are made from runny lava that spreads out widely.
Why do rocks at the bottom of a mountain tend to be rounder than the ones at the top
as the rocks tumble down the mountain the edges become more rounded.
Landslides are most likely to occur when?
the hill is really steep.
Is it possible for a volcano to erupt in Flint, Michigan?
No, Flint is not located near the ring of fire, so it is unlikely.
What are some ways that solid rock can break into smaller pieces?
Seeds may enter into cracks in rocks, and then grow into trees
Water may freeze and crack the rock.
What causes landslides?
Loose rocks, a slope of 35° or more, rain
What are humans doing to reduce the impact of natural disasters?
They are designing and constructing buildings that can withstand things like earthquakes. They are also testing the best types of materials that can be used to build houses near volcanoes.
What is tornado alley?
Tornado Alley is a name for a region in the middle of the US from Texas to North Dakota where large tornadoes are likely to occur.
How do we know the central part of the United States was once covered by the ocean?
Fossils from sea creatures found in what is now the plains of the Midwest provide evidence that this area was once covered by the sea.
Has the landscape you live in always looked the way it does now?
Most landscapes have changed over time. Looking at rock layers and the fossils they contain can provide evidence and clues about what it was like in the past.