Students know water on Earth can be a liquid (rain) or a solid (snow and ice), and can go back and forth from one form to the other.
Earth and Space Science
- Earth systems have internal and external sources of energy, both of which create heat. Driven by sunlight and Earth's internal heat, a variety of cycles connect and continually circulate energy and material through the components of the earth systems.
Students understand that changes in weather often involve water changing from one state to another.