c. Students know how to use astronomical units and light years as measures of distances between the Sun, stars, and Earth.
d. Students know that stars are the source of light for all bright objects in outer space and that the Moon and planets shine by reflected sunlight, not by their own light.
e. Students know the appearance, general composition, relative position and size, and motion of objects in the solar system, including planets, planetary satellites, comets, and asteroids originally thought to be stars are now known to be distant galaxies.






Copyright 2005 -  S. B. EglI