1. I’m Sure It’s Just A Phase: The Lunar Cycle

2. What is a Lunar Phase? A lunar phase or phase of the moon refers to the appearance of the illuminated portion of the Moon as seen by an observer, usually on Earth. A lunar phase or phase of the moon refers to the appearance of the illuminated portion of the Moon as seen by an observer, usually on Earth. Moon The time between two full moons is about 29.53 days on average The time between two full moons is about 29.53 days on average

3. More The Moon exhibits different phases as the relative geometry of the Sun, Earth and Moon changes; The Moon exhibits different phases as the relative geometry of the Sun, Earth and Moon changes; appearing as a full moon when the Sun and Moon are on opposite sides of the Earth, appearing as a full moon when the Sun and Moon are on opposite sides of the Earth, and then as a new moon when they are on the same side and then as a new moon when they are on the same side

5. Names of Phases New Moon New Moon Crescent Crescent First Quarter First Quarter Waxing Gibbous Waxing Gibbous Full Moon Full Moon Waning Gibbous Waning Gibbous Last Quarter Last Quarter Crescent Crescent

6. Today’s Investigations: First Investigation Page 43 in your lab notebooks Page 43 in your lab notebooks Page 64-66 in your text book: Investigation 5.1. Page 64-66 in your text book: Investigation 5.1. (You must also do what is asked in the reflection on page 66 and write your answers on page 42 in your lab notebooks). Second Investigation Page 45 in your lab notebook Page 45 in your lab notebook Page 67 in your text book: Investigation 5.2 Page 67 in your text book: Investigation 5.2 (You must also do what is asked in the reflection on page 67 and write your answers on page 44 in your lab notebooks). A note: on #4 you put your answers in your lab notebooks on page 47