S4E2. Students will model the position and motion of the earth in the solar system and will explain the role of relative position and motion in determining sequence of the phases of the moon.

a. Explain the day/night cycle of the earth using a model.

b. Explain the sequence of the phases of the moon.

c. Demonstrate the revolution of the earth around the sun and the earth’s tilt to explain the seasonal changes.

d. Demonstrate the relative size and order from the sun of the planets in the solar system


The Solar System (S4E2 d). The online interactive explores the relative position of the Earth, sun, planets in the solar system and the movements of the planets around the sun.


Earth and Beyond- Engineering Interact (S4E2 a, c) - The online interactives explores the day/night cycle and the revolution of the earth around the sun and the earth's tilt to explain seasonal changes in individual learning modules.

http://www.engineeringinteract.org/resources/astroadventure/flash/concepts/earth.htm The game, Astro Adventure, combines all of the learning module concepts from The Solar System and Earth and Beyond so students have to apply the information to help solve the mystery. http://www.engineeringinteract.org/resources/astroadventure/astroadventurelink.htm

Planets in Relative Size - This site is in two parts. First, there are images that show how big the planets are when compared to each other and the sun. Second, images of each planet is linked to a separate page comparing it to the size of the Earth. (S4E2d)