# People once thought the Earth was Today we

People once thought the Earth was Today we know its shape is a

Earths Location Earth is located in a collection of stars called a The kind of galaxy is called a spiral galaxy and Earth is

located on one of the arms. The name of the galaxy that Earth is located in is the Solar System The Earth is the 3rd planet of nine planets that revolves

around the sun. The Earths orbit is the curved path it follows as it travels around the sun. Earths Travels

People once believed everything traveled around the Earth. Now we know it is the Earth that moves. It both rotates and

revolves. revolves The spinning of the Earth on its axis

which causes day and night is called The motion of the Earth around the sun which takes about 365 days or one year to complete is called a Figure the Speed

The moon is 240,000 miles from of the Earth and it travels around the Earth once every 27 days. How fast is it traveling?

x diameter= circumference The Earths Tilt The Earth has 4 seasons. Summer, Spring, Autumn, and Winter.

These seasons are caused by Earths The Earths axis is the imaginary line

around which the Earth spins (rotates) causing the Earth to tilt toward and away from the sun during different times of the year.

The seasons depend on which side of Earth is tilted toward the sun. When the Northern Hemisphere is tilted

toward the sun it is summer in the north and winter in the south and vice versa. Day vs. Night

During the summer the number of hours of daylight is longer and the number of hours of darkness is shorter. During the winter it is just the opposite. Longer nights and

shorter days. Solstices The solstices are the longest and shortest days of

the year. The Summer Solstice is the longest and the winter solstice is the shortest. Northern Hemisphere

During the Summer Solstice, the Earth is tilted as far toward the Sun as possible. During the Winter Solstice, the Earth is

tilted as far away from the Sun as possible. Winter Solstice for Northern Hemisphere

Summer Solstice for Southern Hemisphere Summer Solstice for

Northern Hemisphere Winter Solstice for Southern Hemisphere Equinoxes

During the Equinoxes the Sun is neither pointing toward or away from the Sun.

During the Spring and Fall equinox the length of day versus night is equal. Moon Phases New Moon Full Moon

Waxing Crescent Waning Gibbous 1st Quarter

3rd Quarter Waxing Gibbous Waning Crescent

Moon Phases The shadow on the moon always disappears from right to left when the moon is growing. If you can see the right side of the moon, then it is growing. The moon always disappear from left to right as well. So if you can see the left side then it is getting

smaller. What phase?

When the moon appears to be growing it is said to be When the moon appears to be getting smaller it is said to be

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