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Earth In Space. How Earth Moves O EARTH MOVES THROUGH SPACE IN TWO MAJOR WAYS. O ROTATION O REVOLUTION.

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Presentation on theme: "Earth In Space. How Earth Moves O EARTH MOVES THROUGH SPACE IN TWO MAJOR WAYS. O ROTATION O REVOLUTION."— Presentation transcript:

1 Earth In Space

2 How Earth Moves O EARTH MOVES THROUGH SPACE IN TWO MAJOR WAYS. O ROTATION O REVOLUTION

3 How Earth Moves O Axis- the imaginary line that passes through earth’s center and from North Pole to South Pole O Rotation- The spinning of the Earth

4 How Earth Moves O Earths rotation is what causes day and night O It takes about 24 hours to rotate once O Earth rotates in a COUNTER CLOCKWISE direction

5 How Earth Moves O Revolution- The movement of one object around another O One complete revolution around the sun is called a year O Orbit- The path the earth follows around the sun

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7 How Earth Moves O THE EARTHS PATH IS NOT QUITE CIRCULAR, IT IS A SLIGHTLY ELONGATED CIRCLE CALLED AN ELLIPSE

8 The Seasons on Earth O Most places outside of the tropics and polar regions have four seasons O Winter O Spring O Summer O Autumn

9 The Seasons on Earth O Sunlight hits the earth most directly near the equator O It hits the poles at a very steep angle

10 The Seasons on Earth O The earth has seasons because its axis is tilted as it revolves around the sun O Earths axis is always tilted at 23.5° from the verticle

11 The Seasons on Earth O Summer and winter are caused by earths tilt as it revolves around the sun O Fun Fact the earth is farthest from the sun in the summer in the northern hemisphere

12 The Seasons on Earth O Earth in June O The days In the Northern Hemisphere are longer and sun is high in the sky (summer) O Days in the Southern hemisphere are shorter and the sun appears lower in the sky. (winter)

13 The Seasons on Earth O In December the Southern Hemisphere is Summer, the Northern Hemisphere is winter

14 The Seasons on Earth O Solstice. When the sun is farthest from the equator twice a year O Summer Solstice O Winter Solstice

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16 The Seasons on Earth O Equinox- twice a year when the noon sun is directly over head at the equator. Means “equal night” 12 hrs of day and 12 hrs of night O March spring (vernal) O September fall (autumnal) O com/watch?v=lIxRFv DOVIg com/watch?v=lIxRFv DOVIg


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