Unit 9 Whiteboard ReviewUnit 9 Whiteboard Review

Seasons, Moon Phases, and Tides

TidesTides• What causes tides to occur in oceans and

seas?

• The gravitational pull from the MOON!

• What type of tides occur when the moon is directly across from that area of the Earth?

• High tides

• How many high tides occur daily?

• 2

TidesTides

• What type of tide is a spring tide?

• Strongest tide (due to sun and moon being aligned)

• What moon phases occur during a spring tide?

• New moon and Full moon

TidesTides • What are Neap tides?• Weaker tides due to the gravity from the

moon and sun being divided• What type of moon phases occur during a

Neap tide?• Quarter Moons (First and Third)• Neap tides occur when the moon, sun and

Earth form a _________ angle.• Right or 90°

Moon PhasesMoon Phases

• How long does the moon cycle last?

• 29.5 days

• Which side is lit during waxing moons?

• Right side

• How long does the moon take to go from a new moon to a full moon?

• About 2 weeks

Moon PhasesMoon Phases• How much of the moon is lit at one time?• Half• What type of moon phase would cause a solar

eclipse?• New Moon• Is the Earth or moon larger in size?• The earth• Waxing means to _________.• Growing• Waning means ___________.• Shrinking

Moon PhasesMoon Phases

•Name the next phase?

•Waxing Gibbous

Moon PhasesMoon Phases

How much time has passed from these phases occurring?

One Week (one quarter of the moon phases)

SeasonsSeasons

• What about Earth causes day/night?

• The ROTATION

• Do we experience the same amount of daylight every day?

• No…days are different!

• What about the Earth causes seasons?

• Tilt and Revolution of the Earth

SeasonsSeasons

• When the Northern Hemisphere is experiencing summer, what season is the Southern Hemisphere in?

• Winter

• When the Southern Hemisphere is tilted TOWARD the sun what season will it experience?

• Summer

SeasonsSeasons

• What area of the Earth receives direct sunlight year round?

• The equator

• Why are the seasons in the Northern and Southern Hemispheres opposite?

• The tilt of the Earth