Moon, Seasons, Tides and Eclipses

BY: Yajaira

Phases of the Moon

They are different because waxing means that the illumination increases and waning means that the illumination decreases so they are different
These 2 are also different but because of how much is covered because crescent means that the moon is less than 1/2 and gibbous means that the moon is more than half
It takes the moon 29.5 days to orbit around the earth

Seasons

Revolution- Takes earth 365 days to travel around the sun once and is called a year.
Rotation-earth rotates on axis every 23 hours and 56 minutes. 1 day on earth is 1 rotation on earth. It is day when our side of earth faces the sun and it is night when our side of the earth faces away from the sun.
Since earth has a tilt on it's axis it causes the seasons and is tilted at a 23.5 degrees.
A year is a year because it is the time it takes the earth to make one orbit around the sun and it take the earth 365.24 days to orbit the sun
In the Northern hemisphere the longest day s June 21 and the shortest day is December 21 and the northern hemisphere is fewer than 12 hours.
In the Southern Hemisphere the longest day is the winter solstice (December 21) and the shortest day is the summer solstice (June 21) and the southern's hemisphere is more than 12 hours.
At the equator the longest day is July 2 and the shortest day is the winter solstice.

Tides

They are different because spring tides occur during new and full moon and the moon, earth and sun are in line with each other and neap tides occur during quarter phases of the moon and the moon, earth and the sun are not in line with each other
They are different because diurnal is when there is 1 high tide and 1 low tide. Semidiurnal is when 2 high and 2 low tides of equal size every lunar day.
Moon- Makes strong pull on earth. Water moves outward as Earth and Moon revolve around a common center of mass. Moon pulls Earth and pulls water towards it. Water moves up into a slight bulge on the side of earth that faces the moon.

Sun- The sun's pull can heighten the moon's effects or counteract them depending on where the moon is in relation to the sun.

Eclipses

A lunar eclipse is when the earth is between the sun and moon and it occurs when the moon passes behind earth and the earth blocks out sunlight and casts shadow over moon and when it's a full moon. A solar eclipse is when the sun, moon and earth are lined up and the moon is in the middle and occurs when moon moves across the disc of the sun and cast it's shadow across the face of the Earth.
The penumbra is the outer part of the moon's shadow and the penumbra falls and the moon appears to partially cover the sun's disk. The umbra is the inner part of the moon's shadow and no light can penetrate the Umbra and so to the people within the umbra sees the sun to be completely covered by the moon.