Science
Volcanoes & Earthquakes
Conceptual
9–11 yrs
Plate Boundaries
板块边界
Description
Explain how plate boundaries cause earthquakes and volcanoes: plates pushing together, pulling apart, or sliding past each other create the forces that trigger these events, and mountains form where plates collide
Mastery Evidence
- Describe three types of plate boundary movement: convergent, divergent, and transform
- Explain that earthquakes occur when plates grind or collide at boundaries
- Explain that volcanoes form where plates pull apart or one slides under another, allowing magma to rise
Assessment Prompt
Can your child explain why most volcanoes and earthquakes happen at the edges of tectonic plates — where plates push together, pull apart, or slide past each other?
