Maryland College and Career-Ready Standards
MD.2.0. Earth/Space Science: Students will use scientific skills and processes to explain the chemical and physical interactions (i.e., natural forces and cycles, transfer of energy) of the environment, Earth, and the universe that occur over time.
2.A.1. Materials and Processes That Shape A Planet: Investigate objects and materials in the environment.
2.A.1.b. Examine and describe Earth materials: rocks; soil; water.
2.A.1.c. Using examples, describe that objects and materials, such as trees, rocks, and hills on Earth's surface can change.