Sudden changes from below
The Earth's surface can change suddenly when the crust moves. Show what you know about earthquakes and volcanoes.
Q1. Draw and label a volcano. Label: the opening, the melted rock, and the ash and gas.
Q2. Explain what causes an earthquake.
Q3. Describe one way each event changes the Earth's surface.
| Event | How it changes the surface |
|---|---|
| Earthquake | |
| Volcanic eruption |
Q4. A geological event is sudden. How is it different from slow change by erosion?