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EARTH, MOON & SUN. Write Everything in BLUE. Earth’s Rotation. The Earth’s axis is an imaginary line that runs through the center of the Earth The Earth rotates on its axis making a complete circle in 24 hours Rotation is what causes day and night

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Earth moon sun

EARTH, MOON & SUN

Write Everything in BLUE


Earth s rotation
Earth’s Rotation

The Earth’s axis is an imaginary line that runs through the center of the Earth

The Earth rotates on its axis making a complete circle in 24 hours

Rotation is what causes day and night

Earth’s tilted axis is what causes the seasons


Earth s revolution
Earth’s Revolution

Revolution is how the Earth revolves around the sun

One complete revolution takes 1 year

The tilt of the Earth’s axis means that for part of the year, the Northern Hemisphere is pointed towards the sun and the other part of the year it is tilted away from the sun


Solstice
Solstice

Winter Solstice

Solstice occurs when the sun is directly overhead at noon at 23.5° N or 23.5° S latitude

June 21st – the sun is overhead in the Northern Hemisphere so the daylight hours are the longest

December 21st - the sun rays are indirectly hitting the Northern Hemisphere so the daylight hours are the shortest


Equinox
Equinox

  • Equinox occurs when the daylight hours and night hours are exactly the same

  • The sun is directly overhead at noon at the equator

  • Vernal equinox occurs on March 21 and marks the beginning of spring

  • Autumnal equinox occurs on September 23 and marks the beginning of fall


Phases of the moon
Phases of the Moon

  • The positions of the moon, Earth, and the sun causes the phases of the moon, tides, & eclipses.

  • The moon revolves around the Earth in about 27 days

  • We always see only the near side of the moon

  • The moon reflects the light of the sun

  • We see different shapes of the moon due to the positions of the moon, Sun & Earth


Serpent mound ohio
Serpent Mound, Ohio

  • Each curve of the snake represents a direct alignment of the sunset or sunrise on the day of a solstice or equinox


Phases of the moon1
Phases of the Moon

Draw Each of the Moons on the Following Slides!


Moon phases
Moon Phases

Full Moon – we see the whole lighted area of the moon


Moon phases1
Moon Phases

Waning Gibbous – the moon will seem to get a little smaller


Moon phases2
Moon Phases

Third or Last Quarter – You can see half of the moon’s lighted side (the left side)


Moon phases3
Moon Phases

  • Waning Crescent – You see a very small portion of the moon resembling a crescent


Moon phases4
Moon Phases

New Moon – the sun lights the side of the moon that faces away from the Earth so we don’t see anything


Moon phases5
Moon Phases

  • Waxing Crescent – You see more of the moon -the right side of the crescent


Moon phases6
Moon Phases

  • First Quarter – You see the right half of the lighted moon


Moon phases7
Moon Phases

  • Waxing Gibbous – the amount of the right side of the moon that we see continues to grow


Eclipses
Eclipses

An eclipse occurs when an object in space comes between the sun and another object


Solar eclipse
Solar Eclipse

  • A solar eclipse occurs when the new moon passes between the sun and Earth

    • umbra – the darkest part of the moon’s shadow which results in a total solar eclipse

    • penumbra – the larger part of the moon’s shadow which results in a partial eclipse


Lunar eclipse
Lunar Eclipse

  • A lunar eclipse occurs when the Earth comes between a full moon and the sun


The moon
The Moon

  • The moon is ¼ the size of Earth

  • In 1609 Galileo made a telescope and was the first person to view a close-up of the moon

  • The dark spots on the moon are low dry areas

  • Craters on the moon are the result of meteor impacts


Mission to space
Mission to Space

Neil Armstrong

The USSR “Sputnik” was the first satellite to orbit the Earth in 1957

Yuri Gagarin was the first person to orbit the Earth

In July 1969, Apollo 11 carried the first men to the moon

Neil Armstrong and Buzz Aldrin were the first men to step on the moon


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