This includes understanding the result of the relative positions and movement of the earth, moon, sun, stars, planets, and galaxies. It also entails an understanding of how scientists gather data and formulate explanations for phenomena in space. Describe the concept of galaxies, including size and number of stars. Compare and contrast distances and the time required to travel those distances on earth, in the solar system, in the galaxy, and between galaxies. Describe the motions of moons, planets, stars, solar systems, and galaxies.
Energy takes many forms which can exert forces and do work.
The conversion of energy from one form to another offers useful applications and sometimes presents problems. Demonstrate that energy cannot be created or destroyed but only changed from one form to another. Describe the characteristics of static and current electricity. Categorize energy sources as renewable or non-renewable and compare how these sources are used by humans. Describe how energy put into or taken out of a system can cause changes in the motion of particles in matter.