Science
Volcanoes & Earthquakes
Conceptual
7–9 yrs
Types of Rock
岩石的种类
Description
Know the three main types of rock — igneous (formed when lava or magma cools), sedimentary (formed from layers pressed together), and metamorphic — and that fossils are found in sedimentary rock
Mastery Evidence
- Name the three main rock types: igneous, sedimentary, metamorphic
- Explain that igneous rock forms when lava or magma cools and hardens
- State that fossils are preserved in sedimentary rock because it forms in layers
Assessment Prompt
If your child finds different rocks on a beach walk, can they sort them and explain that some formed from cooled lava, some from layers pressed together over time, and that fossils are found in the layered ones?
