Affects of the moon
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Affects of the Moon. Moon Phases. Moonlight is really light from the Sun reflected by the Moon’s surface The amount of the moon that you see from Earth depends on the angle between the Moon and the Sun. Moon Phases. At any time, sunlight shines on half of the Moon’s surface

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Moon phases
Moon Phases

  • Moonlight is really light from the Sun reflected by the Moon’s surface

  • The amount of the moon that you see from Earth depends on the angle between the Moon and the Sun


Moon phases1
Moon Phases

  • At any time, sunlight shines on half of the Moon’s surface

  • As the Moon turns on its axis, areas on the surface move in and out of sunlight


Moon phases2
Moon Phases

  • Lunar phases are the patterns of lit and unlit portions of the Moon that you see from Earth

  • It takes about a month for the Moon to orbit Earth and go through all the phases


Eclipses
Eclipses

  • If the Moon, the Sun, and Earth line up exactly, a shadow crosses Earth or the Moon

  • Eclipse – occurs when a shadow makes the Sun or Moon seem to grow dark

  • In a lunar eclipse, the Moon darkens

  • In a solar eclipse, the Sun seems to darken


Lunar eclipses
Lunar Eclipses

  • The Moon becomes dark during a lunar eclipse because it passes through Earth’s shadow

  • There are two parts of Earth’s shadow

    • Umbra – the darkest part

    • Penumbra – a spreading cone of lighter shadow around the darkest part


Lunar eclipses1
Lunar Eclipses

  • Just before a lunar eclipse, sunlight streaming past Earth produces a full moon

  • The entire Moon can be in darkness because the Moon is small enough to fit entirely within Earth’s umbra

  • A total lunar eclipse occurs when the Moon passes completely into Earth’s umbra


Lunar eclipses2
Lunar Eclipses

  • If the Moon misses part or all of the umbra, part of the Moon stays light and eclipse is called a partial lunar eclipse


Solar eclipses
Solar Eclipses

  • In a solar eclipse, the Sun seems to darken because the Moon’s shadow falls onto part of Earth

  • The sky becomes as dark as night, and you may see constellations

  • Total solar eclipse - the new mooncrosses in front of the sun and seems to be surrounded by a pale glow


Solar eclipses1
Solar Eclipses

  • A solar eclipse occurs when the Moon passes directly between Earth and the Sun

  • Only locations in the path of the Moon’s shadow experience a solar eclipse


Solar eclipses2
Solar Eclipses

  • If only the penumbra moves over your location, you experience a partial solar eclipsebecausethe Moon only covers part of the Sun


Tides
Tides

  • The average water level rises slowly for about 6 hours – the highest level is called high tide

  • Then the water level slowly drops for about six hours – the lowest level is called low tide

  • The entire pattern – two high tides and two low tides – takes a little more than 24 hours


Tides1
Tides

  • Tides occur because the Moon’s gravity changes the shape of Earth’s oceans


Tides2
Tides

Spring Tide –

  • The high tides are very high and the low tides are very low

  • They occur when the Earth, the Sun, and the Moon are in a line - the gravitational forces of the Moon and the Sun both contribute to the tides

  • Spring tides occur during the full moon and the new moon


Tides3
Tides

Neap Tide -

  • There is a smaller difference between high and low tides

  • Neap tides are especially weaktides

  • They occur when the gravitational forces of the Moon and the Sun are perpendicular to one another (with respect to the Earth)

  • Neap tides occur during quarter moons


Tides4
Tides

  • Because the Moon is orbiting while Earth is turning, the cycle takes a little longer than the 24 hours in a day


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