B ENCHMARK T EST R EVIEW. H OW THE E ARTH M OVES Rotation: The spinning of Earth along its imaginary axis at a 23.5 o angle Revolution: Earth’s yearly.

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Presentation transcript:

B ENCHMARK T EST R EVIEW

H OW THE E ARTH M OVES Rotation: The spinning of Earth along its imaginary axis at a 23.5 o angle Revolution: Earth’s yearly orbit around the Sun *This causes our days and nights. It takes 24 hours for Earth to complete one rotation. It takes one year for Earth to complete one revolution Orbit is Elliptical: long curved course. *Earth rotates on its axis counterclockwise

S EASONS *Solstice: Earth is furthest distance north or south from the Sun. *Equinox: Sun is directly about the Earth. Days and nights are equal. Caused by Earth’s tilt Summer Solstice: June 21 Longest period of Daylight Long days, short nights Winter Solstice: December 21 or 22 Long nights, short days Fall (Autumn) Equinox: September 21 or 22 Spring (Vernal) Equinox: March 21 or 22 During equinoxes, direct Sun rays hit the equator.

Summer *Occurs during a Solstice *The Northern Hemisphere is pointed directly towards the sun receiving direct Sun rays

Autumn and Vernal *Occurs during an Equinox *The Sun is directly over the equator. Days and nights are equal.

Winter *Occurs during a Solstice. *The Northern Hemisphere is tilted away from the Sun.

Moon Phases

Moon’s Rotation on its axis and Revolution around Earth takes 27.3 days *Always see the same side of the Moon *Moon doesn’t emit its own light. Reflects light off its surface from the Sun.

Moon Phases Takes 29.5 days for the Moon to complete its cycle. Two Phases: Waxing: “Light on the Right, getting Bright” Waning: Moon seem to “shrink”

Moon Phases

Eclipses Lunar Eclipse: Earth moves between the Moon and the Sun and casts a shadow on the Moon Solar Eclipse: Moon moves between the Earth and Sun and casts a shadow on parts of the Earth.

Tides Spring Tide -Sun, Earth, and Moon are lined up. -Occurs during New Moon and Full Moon Phase -High Tides are higher than normal Caused by the gravitational pull of the Moon on the Earth’s oceans. Neap Tide -Sun, Earth and Moon form a 90 o angle. -Occurs during 1 st Quarter and 3 rd Quarter Phase. -Low Tides are higher than normal.

Review

Illustrate Waxing Gibbous Phase

Illustrate Waning Crescent Phase

Illustrate Full Moon Phase

Illustrate 1 st Quarter Phase

IllustrateW aning Gibbous Phase

Illustrate Waning Crescent Phase

Illustrate New Moon Phase

Illustrate 3 rd Quarter Phase

Illustrate Spring Tide

Illustrate Neap Tide

Illustrate Lunar Eclipse

Illustrate Solar Eclipse

Study!

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