Our Ladys School - Gizmo Solar System Explorer SE_Key.

Solar System Explorer Answer Key Vocabulary: astronomical unit, dwarf planet, eccentricity, ellipse, gas giant, Kepler’s laws, orbit, orbital radius, period, planet, solar system, terrestrial planet Prior Knowledge Questions (Do these BEFORE using the Gizmo.) [Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] 1. List all of the planets you can think of in our solar system. Try to list them in order from closest to farthest from the Sun. Answers will vary. [Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune] 2. Which planets are most like Earth? Which are most different from Earth? Explain. Answers will vary. [Venus and Mars are both rocky planets that contain atmospheres.