- The text explains that rocks are classified into three main types: igneous, sedimentary, and metamorphic.
- Igneous rocks form from the cooling and solidification of magma or lava. Granite is an example of an intrusive igneous rock, while basalt is an extrusive igneous rock.
- Sedimentary rocks form from the accumulation and lithification of sediments. Sandstone and limestone are examples.
- Metamorphic rocks form when existing rocks are transformed by heat, pressure, or chemically active fluids. Marble and slate are examples.
- The passage also mentions Mount Rushmore as a famous example of granite, which is an igneous rock.
- Each rock type has distinct characteristics based on its formation process, mineral composition, and texture.
Parent Tip: Review the logic above to help your child master the concept of rock types worksheet.