Earth, Moon & Sun Moon Phases & Eclipses

Essential Standards 6.E.1Understand the earth/moon/sun system, and the properties, structures and predictable motions of celestial bodies in the Universe.

Clarifying Objectives 6.E.1.1 Explain how the relative motion and relative position of the sun, Earth and moon affect the seasons, tides, phases of the moon, and eclipses.

Essential Questions How do the phases of the moon change as it REVOLVES around the Earth? What are the positions of the sun, moon, & Earth during a solar & lunar eclipse? How does rotation & revolution of the Earth affect units of time on Earth?

Phases of the Moon The Earth is revolving around the sun The moon is revolving around the Earth The MOONS CHANGING IN POSITION IN RELATION TO THE SUN & THE EARTH causes moon phases http://www.youtube.com/watch?v=0vXWXqGmPCk

Phases of the Moon The moon is circling the Earth so we can only see part of the moon Half of the moon is always lit up Moonlight is just the sun’s light reflecting off the moon & into your eyes http://www.youtube.com/watch?v=LaqrQyTm9B4 5:11-6:20

Phases of the Moon When the moon is in between the sun & the Earth we CAN’T see the moon When the Earth is in between the sun & the moon we can see all of the lit side of the moon

Phases of the Moon The moon cycles from New moon to Full moon every 29.5 days That is = to 1 month We get our MONTHS from the Revolutions of the moon

Phases of the Moon http://www.youtube.com/watch?v=LaqrQyTm9B4 1:17-4:15

Essential Question?? Get with a partner or group and answer… How do the phases of the moon change as it REVOLVES around the Earth? Why do we see different phases of the moon?

Eclipses Eclipses are what happen when the Earth casts a shadow on the moon or the moon casts a shadow on the Earth AN ECLIPSE IS WHENEVER SUNLIGHT IS BLOCKED When the Earth casts a shadow on the moon we have a LUNAR ECLIPSE When the moon casts it’s shadow on the Earth we have a SOLAR ECLIPSE http://www.youtube.com/watch?v=LaqrQyTm9B4 10:07-11:59

Lunar Eclipse AN ECLIPSE IS WHENEVER SUNLIGHT IS BLOCKED When the Earth casts a shadow on the moon we have a LUNAR ECLIPSE

Solar Eclipse AN ECLIPSE IS WHENEVER SUNLIGHT IS BLOCKED When the moon casts it’s shadow on the Earth we have a SOLAR ECLIPSE http://www.youtube.com/watch?v=LaqrQyTm9B4 10:07-11:59

Why don’t we get Eclipses every Month We don’t get eclipses every month because the moon’s orbit is TILTED If it was a straight line orbit we would get both a lunar & a solar eclipse every month http://www.youtube.com/watch?v=LaqrQyTm9B4 10:07-10:51

Essential Question Get with a partner or group and answer… What are the positions of the sun, moon, & Earth during a solar & lunar eclipse?

EOG Questions Which best explains why the moon has phases? A) The moon’s position changes in relation to the sun and Earth. B) The sun’s position changes in relation to the moon and Earth. C) The Earth casts a shadow on the moon as it rotates. D) The moon rotates along its axis.

Important Points Moon phases happen because the MOON CHANGES POSITIONS as it revolves around the Earth When you can’t see the moon it is called a NEW MOON When you see whole moon it is called a FULL MOON The moon makes a revolution around the Earth every 29.5 days which is why we have a month AN ECLIPSE IS WHENEVER SUNLIGHT IS BLOCKED When the moon casts it’s shadow on the Earth we have a SOLAR ECLIPSE When the Earth casts a shadow on the moon we have a LUNAR ECLIPSE Moonlight is sunlight REFLECTING off the moon into your eyes