- Igneous rock
- Sedimentary rock (fossil)
- Sedimentary rock (layered)
- Igneous rock (obsidian)
- Metamorphic rock (gneiss)
- Igneous rock (granite)
- Metamorphic rock (marble)
Lava is magma that has erupted onto the Earth’s surface; magma is molten rock beneath the surface.
Igneous rocks form when magma or lava cools and solidifies.
Sedimentary rocks form from the accumulation and lithification of sediments, often in layers, through processes like erosion, deposition, and compaction.
Metamorphic rocks form when existing rocks are altered by heat, pressure, or chemically active fluids, without melting.
Parent Tip: Review the logic above to help your child master the concept of rock types worksheet.