Quiz Review

Stages of the Moon~In which phase of the moon can we see one full

half of the moon?What do we call this phase?

Moon Phases

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Moon Phases

Full MoonFull Moon

Moon Phase

• Why are the phases of the moon a cycle?

Moon Phases

Phases of the Moon

• The moon phases are a cycle because the moon revolves around the Earth one full revolution every 27.3 days and then starts over.

Illustration

Moon Phases

Phases of the moon

• What causes us to see different phases of the moon?

Moon Phases

Phases of the Moon• The Moon produces no light of its own. • We see it "shine" because it reflects the light from the Sun. For this reason, the

side of the Moon that faces the Sun is completely bathed in light, while the side that faces away from the Sun is in darkness 2.

• Depending upon the Moon's position relative to the Earth and the Sun, we will usually see some portion of both sides.

• Information from http://www.astrologyclub.org/articles/phases/phases.htm

Illustration

Moon Phases

Day and Night

• What causes day and night?

Day and Night

Day and Night

• The Earth’s rotation on its axis.

Day and Night

Day and Night

• How long does it to make 1 rotation?

Day and Night

Day and Night

• 24 hour, which is 1 calendar day.

Day and Night

Seasons

• What causes the Earth’s seasons?

Seasons

Seasons

• The Earth’s tilt and the Sun’s rays hitting different parts of the Earth as it revolves around the Sun.

(Picture on next slide)

Seasons

SeasonsSeasons

Seasons

• If the northern hemisphere is tilted towards the Sun what season is it there? Why?

Seasons

Seasons

• Summer, because the Earth is tilted so that Sun’s rays are directly striking the Northern Hemisphere.

Seasons

Seasons

• How long does 1 full revolution around the Sun take?

Seasons

Seasons

• 365 days or 1 year

Seasons

Seasons

• If it is winter in the northern hemisphere what season is it in the southern hemisphere?

AnswerNext slide

Seasons

Tides

• What causes tides?

Tides

Tides

• Tides are caused by the gravitational pull of the moon.

Tides

Tides

• How many high tides and how many low tides does occurs in an area each day?

Tides

Tides

• The tides follow a pattern of two high and two low tides every 24 hours.

Tides

• Earth/moon graphic: http://www.how-to-draw-cartoons-online.com/lunar-new-year.html

• Moon phases chart: http://www.moonconnection.com/moon_phases.phtml• Moon phases chart 2:

http://www.gwit.org/students/fremont/assign/moon/moon.htm• Moon phases hyperlink:

http://www.astrologyclub.org/articles/phases/phases.htm• Day and night illustration:

http://www.lpi.usra.edu/education/skytellers/day_night/activities/cycle_of_light.shtml

• Seasons illustration: http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Seasons.shtml

• Seasons illustration 2: http://www.teachingboxes.org/avc/content/Seasons_In_The_Sun.htm

• Tides illustration: http://mail.colonial.net/~hkaiter/Moon_Phases_Tides.html

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