Grade 4 Earthquake Quiz: Surface Changes & Cracks

📚 Quick Study Guide

• 🌋 Earthquakes: Earthquakes are sudden, rapid shaking of the Earth caused by the movement of tectonic plates.
• 🏞️ Surface Changes: Earthquakes can cause significant changes to the Earth's surface, including cracks, landslides, and changes in elevation.
• 🚧 Cracks: Cracks in the ground are a common result of earthquakes, forming where the ground is pulled apart or compressed.
• ⛰️ Landslides: Earthquakes can trigger landslides, where large amounts of soil and rock move downhill.
• 📏 Measuring Earthquakes: The magnitude of an earthquake is measured using the Richter scale.
• 🧭 Tectonic Plates: Earth's crust is divided into several large plates that are constantly moving. Earthquakes often occur along the boundaries of these plates.
• 🌱 Vegetation Impact: Surface changes caused by earthquakes can impact vegetation and ecosystems in the affected areas.

🧪 Practice Quiz

1. What is the main cause of earthquakes?
   1. A. Heavy rainfall
   2. B. Movement of tectonic plates
   3. C. Volcanic eruptions
   4. D. Strong winds
2. Which of the following is a common surface change caused by earthquakes?
   1. A. Formation of new lakes
   2. B. Growth of forests
   3. C. Cracks in the ground
   4. D. Melting of glaciers
3. What is a landslide?
   1. A. A type of earthquake
   2. B. A large movement of soil and rock downhill
   3. C. A crack in the ground
   4. D. A volcanic eruption
4. Which scale is used to measure the magnitude of an earthquake?
   1. A. Celsius scale
   2. B. Richter scale
   3. C. Fahrenheit scale
   4. D. Kelvin scale
5. Where do earthquakes most often occur?
   1. A. In the middle of oceans
   2. B. Along the boundaries of tectonic plates
   3. C. In deserts
   4. D. On mountaintops
6. How can earthquakes affect vegetation?
   1. A. By increasing plant growth
   2. B. By causing surface changes that damage ecosystems
   3. C. By making plants taller
   4. D. By changing the color of leaves
7. What type of surface change might block a river?
   1. A. A small crack
   2. B. A landslide
   3. C. A sinkhole
   4. D. A dust cloud