All these skills are emphasized thorughout the standards.
Scientific progress is made by asking meaningful questions and conducting careful investigations.
The solar system consists of planets and other bodies that orbis the sun in predictable paths. Many phenomena on the Earth's surface are affected by the transfer of energy through radiation and convection currents. Organisma in ecosystems exchange energy an dnutrients among themselves and with the environment. Sources of energy and materials differe in amounts, distribution, usefulness, and the time required for their formation. Physical Science 1.