The Massive Movement Project
Ptolemy thought the earth is in the center of the universe, which is Geocentric model. But after many years, a scientist who learned astronomy named Copernicus, he thought the sun is in the center of the universe, which is Heliocentric model. Two evidences can support Heliocentric model are the seasons and the movement of the starts.
Rotation is the motion of the Earth, it get support from the axis. Rotation length is 24hours/day. The axis is a imaginary line in the central of the Earth. The tilt of the Earth's axis is 23.45 degrees. Equator is the imaginary that around the Earth, it is 0 degree. Equator divided earth into two hemispheres, there are northern hemisphere and southern hemisphere. polaris is important because the axis always point it, and Polaris always in the north. Two evidences can support rotation are pendulum (swing) and Coriolis effect.
Revolution is the earth move around the sun. Revolution length is 365 days or a year. The orbit is earth revolution process the curbed path. The shape of earth's orbit is ellipse. Aphelion is far to the sun, but perihelion is near to the sun. Constellation is the shape in the sky that made many stars connect. Two evidence can support revolution are soilors notices changes in how the night sky looked and stars.
There are 24 time zones in the world, time zones dividend by longitude. The International Date Line ( IDL) is the line changing the calender days. The Greenwich Mean Time (GMT) is the town where time begin.
There are four season: Spring, Summer, Fall, and Winter. But there is not season at the equator because it always hot. Direct is more sunlight, but indirect is less sunlight. Two main causes of the Earth's seasons are: the earth moves around on it's orbit, and different places get different sunlight.
The winter solstice is the earth is far from the sun, the date of the winter solstice is Dec. 21 or 22. The summer solsticce is the earth is near to the sun, the date of the summer solstice is June 21 or 22.
Equinox is when earth receive the same amount of the sunlight. The date of the Vernal (Spring) Equinox is March 21 or 22. The date of the Autumnal (Fall) Equinox is September 22 or 23.
The phases of the Moon is different forms that the moon takes from the Earth. Moon get its light from the sun. There are five different moons: New moon (no moon, cannot see the moon); Crescent moon (less than half); Quarter moon (half); Gibbous moon (more than half); Full moon (circle, all). Waxing means getting bigger, but waning means getting less.
Lunar Eclipse is when moon goes above or below the earth's umbra. Total lunar eclipse is full, partialeclips lunar eclipse is half. Solar Eclipse is the moon is between sun and earth. The new moon is a solar eclipse. The total solar eclipses is when moon fully blocked the sunlight. But the partial solar eclipses is only part of sunlight is blocked.
Tide is the ocean moving high and low, moon is the main cause of the earth's tides. Spring Tide is the tide is higher or lower than a normal tides. Full Moon and New Moon are Spring Tides. When moon, earth, and sun are at 90 degrees angle that is called Neap Tide. 3rd quater and 1st quater of the moon are Neap Tides.
There are 24 time zones in the world, time zones dividend by longitude. The International Date Line ( IDL) is the line changing the calender days. The Greenwich Mean Time (GMT) is the town where time begin.
There are four season: Spring, Summer, Fall, and Winter. But there is not season at the equator because it always hot. Direct is more sunlight, but indirect is less sunlight. Two main causes of the Earth's seasons are: the earth moves around on it's orbit, and different places get different sunlight.
The winter solstice is the earth is far from the sun, the date of the winter solstice is Dec. 21 or 22. The summer solsticce is the earth is near to the sun, the date of the summer solstice is June 21 or 22.
Equinox is when earth receive the same amount of the sunlight. The date of the Vernal (Spring) Equinox is March 21 or 22. The date of the Autumnal (Fall) Equinox is September 22 or 23.
The phases of the Moon is different forms that the moon takes from the Earth. Moon get its light from the sun. There are five different moons: New moon (no moon, cannot see the moon); Crescent moon (less than half); Quarter moon (half); Gibbous moon (more than half); Full moon (circle, all). Waxing means getting bigger, but waning means getting less.
Lunar Eclipse is when moon goes above or below the earth's umbra. Total lunar eclipse is full, partialeclips lunar eclipse is half. Solar Eclipse is the moon is between sun and earth. The new moon is a solar eclipse. The total solar eclipses is when moon fully blocked the sunlight. But the partial solar eclipses is only part of sunlight is blocked.
Tide is the ocean moving high and low, moon is the main cause of the earth's tides. Spring Tide is the tide is higher or lower than a normal tides. Full Moon and New Moon are Spring Tides. When moon, earth, and sun are at 90 degrees angle that is called Neap Tide. 3rd quater and 1st quater of the moon are Neap Tides.
