Washington DC Standards
DC.5.3. Earth Science: Broad Concept: The solar system consists of planets and other bodies that orbit the sun in predictable paths. As a basis for understanding this concept, students:
5.3.3. Demonstrate how the Earth orbits the sun in a year's time, and Earth rotates on its axis about once every 24 hours.
5.3.5. Explain that the alternation between day and night and the apparent movement of the sun, moon, and stars across the sky depend on the rotation of the Earth on its axis.
DC.5.4. Earth Science: Broad Concept: Water on Earth moves from the ocean to the land through the processes of evaporation and condensation. As a basis for understanding this concept, students:
5.4.1. Investigate and describe when liquid water evaporates, it turns into a gas (vapor) mixed into the air and can condense and reappear as a liquid when cooled or as a solid (ice) if cooled below the freezing point of water.
5.4.4. Explain that the air around us is matter and has weight (a force) and exerts pressure; explain that air pressure varies a little from place to place and from time to time.
5.4.7. Explain that water on Earth cycles through different forms and in different locations, e.g., underground water and vapor in the atmosphere.