Download D3 Study Guide Answers 1. all of the water found on , under

 D3 Study Guide Answers 1. all of the water found on , under or over the surface of a planet 2. Ptolemy – Geocentric – Geo means Earth – Earth is at the center Copernicus – Heliocentric – Helio means sun – Sun is at the center with a circular orbit Kepler – Heliocentric with an elliptical orbit 3. Earth’s rotation of its axis 4. 1 day, 24 hours 5. seasons are due to the tilt of the Earth’s axis as it moves around the Sun; when the Northern Hemisphere is pointed towards the Sun, the Sun’s rays hit it more directly and there are more hours of daylight and it is warmer(Summer occurs) 6. one year(365 ¼ days) 7. New moon to full moon increased amount of the lighted side of the moon; during first and third quarter half of moon is lit but on opposite sides; refer to Lesson 4 Reading Guide for picture of phases 8. Refer to Question #2 and add Galileo – telescope 9. The rotation of Earth 10. East to west; sun rises in the east and sets in the west 11. The gravitation pull of the moon on different parts of the Earth(oceans) causes tides. 12. Because the moon rotates once for each revolution around Earth 13. 8 planets, 166 moons 14. a year of time 15. seasons