Science
Earth's Systems
Language
9–11 yrs
Types of rocks
岩石的种类
Description
Use vocabulary for Earth's geological processes and rock types — igneous, sedimentary, metamorphic, erosion, weathering, deposition, fossil, sediment, strata, permeable, impermeable — and apply these when explaining how rocks form and how landscapes change over time
Mastery Evidence
- Correctly classify igneous, sedimentary, and metamorphic rocks and explain in one sentence how each type forms
- Use 'erosion', 'weathering', and 'deposition' correctly as three distinct stages in a sequence
- Explain how fossils form using 'sediment' and 'sedimentary rock' correctly
Assessment Prompt
Could your child explain the difference between a rock being weathered and being eroded — those are actually two different things?
Prerequisites 0
No prerequisites (entry-level topic)
