Science Matter & Materials Conceptual 12–14 yrs

The Rock Cycle

岩石循环

Description

Explain the rock cycle: how igneous rocks form from magma, sedimentary rocks from compressed sediment, and metamorphic rocks from heat and pressure, and how all rock types can transform into one another over geological time

Mastery Evidence

✓ Describes how each rock type (igneous, sedimentary, metamorphic) is formed
✓ Gives an example of each rock type and its formation (e.g. granite, limestone, marble)
✓ Traces a rock sample through possible transitions in the rock cycle
✓ Explains what geological time means and why rock cycle changes are slow

Assessment Prompt

If your child picked up a piece of marble on a school trip, could they explain how it was originally limestone, what changed it into marble, and how long that process took?