Sun major sources of energy. 1 Phase change, heat energy absorbed or released Graphic phase change Thermal expansion, most expand when heated, water exception.
Materials absorb, reflect or transmit light.
Light demos, lab, different colors, textures Lab- Reflection and refraction, Holt Physical Science 1 Sound wave theory, vary in different materials. Does not travel in a vacuum. Electric Skies - TLC Electrical circuit complete circuit to transfer energy. Review series and parallel circuits. Lab and demo static electricity Electrostatic series 1 Magnets magnetic field is invisible, strongest at poles, attract and repel, compass, iron and steel attract.