Standards

3.E.2 Compare the structures of the Earth’s surface using models or three-dimensional diagrams.

3.E.2.1 Compare Earth’s saltwater and freshwater features (including oceans, seas, rivers, lakes, ponds, streams, and glaciers).

3.E.2.2 Compare Earth’s land features (including volcanoes, mountains, valleys, canyons, caverns, and islands) by using models, pictures, diagrams, and maps.

Essential Questions

• How would you describe the structure of Earth’s surface? (3.E.2)

• How do Earth's water features compare? (3.E.2, 3.E.2.1)

• How do Earth's land features compare? (3.E.2, 3.E.2.2)

• How do Earth's land and water features compare? (3.E.2, 3.E.2.1, 3.E.2.2)

• How do models and three-dimensional diagrams help us understand Earth’s surface features? (3.E.2.2)