1. Igneous rocks can form from magma by the process of cooling and solidification.
2. Igneous rocks can form intrusive (plutonic) and extrusive (volcanic) rocks.
3. Sediments form from weathering and erosion by the process of deposition.
4. Sediments form from the process of weathering, erosion, transportation, and deposition.
5. Sedimentary rocks can form clastic, chemical, and organic rocks.
6. The process that changes igneous rock into metamorphic rock is metamorphism.
7. The process that changes sedimentary rock into igneous rock is melting and solidification.
8. The process that changes metamorphic rock into sedimentary rock is weathering, erosion, deposition, and lithification.
Parent Tip: Review the logic above to help your child master the concept of the rock cycle worksheet answers.
