Types of 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 [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?”