Understanding Solar and Lunar Eclipses and Seasons

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34 Terms

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Solstice

Daylight hours are shorter for the hemisphere that is tilted away
from the Sun during the?

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Winter

When it is blank in the U.S earth is closest to the sun

3
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Summer/Winter Solstice

The Sun's rays strike Earth at their northernmost and southernmost
positions during the?

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energy from the sun

When the north end of Earth's rotation axis is pointing toward the sun, the northern hemisphere receives more?

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The tilt (23.5 degrees) of earthe curvature

The seasons are caused by?

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New moon

Solar eclipse only happen during a?

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Sun, moon and earth.

A new moon accurs when the blank, blank, and blank are aligned

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Full moon

A lunar eclipse can only occur during a

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the Moon's
orbit around Earth and Earth's
orbit around the sun are not in the same plane so the 3 bodies line up occasionally

Lunar eclipse don't occur every full moon because?

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Janurary

Earth is closet to the sun in the mouth of?

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Umbra

The darkest part of Earth's shadow during an eclipse.

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Rotates

The Earth ________ on its axis.

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revolves

The Earth ________ around the Sun.

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west to east (counterclockwise)

The Sun, Moon, and stars appear to move east to west across the sky because Earth rotates from?

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7 minutes

Longest total eclipse lasts about?

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Same

Earth's rotation axis is always tilted in the blank direction

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June 20

The summer solstice occurs In blank in the northern hemisphere

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December 21

The summer solstice occurs in blank in the southern hemisphere

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Toward

Summer occurs on the hemisphere of earth that is tilted blank the sun

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Stronger and smaller

A light source shining on a vertical surface is blank
because it is concentrated in a blank area.

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Highest

Not only is the summer solstice the longest day of the year, it is also the day on which the Sun appears to be blank in the sky

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Equator

Sunlight is more spread out as you move away from the?

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Emit

The moon blanks it own light

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Waning Crescent

The phase of the Moon right before the New Moon is the?

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Earth and moon

Eclipses occur when a blank and blank are lined up perfectly

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Shadow or penumbra

The first stage of a lunar eclipse is when the Moon moves into the Earth's

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total darkness, The moons appearance changes as it gradually moves into earths penumbra.

What may happen when the Moon enters Earth's umbra during a total lunar eclipse?

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Penumbra

1st stage of lunar eclipse is

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The sun is always shining on half of the moon just as the sun is always shining in the earth.

What is the relationship between the Moon phases and the relative positions of the sun, moon and earth?

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The moons orbit around earth and orbit around the sun are not in the same plane

What dont solar eclipses occur every full moon?

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Every 2.5 years

How often do lunar eclipses occur

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How often do full moons occur

every 29.5 days

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The diagram shows that the Moon does not directly pass in front of Earth and block sunlight every full moon, but only wher
the Moon's orbit is low enough to pass through Earths shadow.

Why do lunar eclipses occur less often than full moons?

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Eare sooni arbite on the same
plane. The moon's orbit is tilted 5 degrees.

Why do lunar eclipses not occur every full moon?