Earth's Surface Changes and Events

The video explains how Earth's surface changes, focusing on quick changes caused by volcanoes, earthquakes, and landslides. It highlights the eruption of Mount St. Helens, the effects of earthquakes, and how landslides reshape the land. The video encourages viewers to think about other ways Earth's surface can change.

What is the main difference between slow and quick changes to Earth's surface?

• Slow changes occur over days, quick changes occur over years.

• Slow changes occur over centuries, quick changes occur in minutes or seconds.

• Slow changes occur in minutes, quick changes occur over centuries.

• Slow changes occur in seconds, quick changes occur over days.

What is a key characteristic of an active volcano?

• It has never erupted.

• It has erupted in the last 10,000 years.

• It has erupted in the last 1,000 years.

• It has erupted in the last 100 years.

What was a significant event caused by the eruption of Mount St. Helens?

• A tsunami.

• A massive earthquake.

• The largest recorded landslide.

• The creation of a new island.

How do lava flows from volcanic eruptions affect Earth's surface?

• They cause earthquakes.

• They lead to landslides.

• They form new rock layers.

• They create new water bodies.

What causes the ground to shake during an earthquake?

• Volcanic eruptions.

• Large parts of Earth's surface slipping past each other.

• Heavy rainfall.

• Strong winds.

What can earthquakes create on Earth's surface?

• Cracks.

• New rivers.

• Lakes.

• Mountains.

What natural event can cause landslides besides earthquakes?

• Strong winds.

• Heavy rainfall.

• Volcanic eruptions.

• Drought.

What happens to the slope after a landslide?

• It looks scooped out.

• It forms a new mountain.

• It becomes steeper.

• It becomes flat.

Where does the material from a landslide typically end up?

• In the atmosphere.

• At the bottom of the slope.

• In the ocean.

• At the top of the slope.

What are some quick changes that can alter Earth's surface?

• Sedimentation, weathering, and volcanic eruptions.

• Glacial movement, tectonic shifts, and erosion.

• Volcanoes, earthquakes, and landslides.

• Erosion, weathering, and sedimentation.