Introduction to Science

Scientific progress is made by asking meaningful questions and conducting careful investigations. (6.7)

Earth's Changing Crust

Plate tectonics accounts for important features of Earth's surface and major geologic events. (6.1)

Weathering and Erosion

Topography is reshaped by the weathering of rock and soil and by the transportation and deposition of sediment. (6.2)

Movement of Heat

Heat moves in a predictable flow from warmer objects to cooler objects until all the objects are at the same temperature. (6.3)

Energy Transfer and Weather

Many phenomena on Earth's surface are affected by the transfer of energy through radiation and convection currents. (6.4)

Ecosystems

Organisms in ecosystems exchange energy and nutrients among themselves and the environment. (6.5)

Earth's Resources

Sources of energy and materials differ in amounts, distribution, usefulness, and the time required for their formation. (6.6)