Question

1.What two factors cause the cycle of the seasons?
2.How do rotation and revolution differ?
3.Are changes in the distance between Earth and the sun important in causing the cycle of the seasons? Explain.
4.Why does the moon change its phases as the month progresses?
5.Describe three uses of satellites and space stations.

Answer 1

The drawing I attached is of the earth, in two positions of its orbit around the sun.
The earth rotates (spins like a top) as it goes around the sun, on an axis that is tilted.
When the bottom part of the earth is tilted toward the sun, as shown on the left side of the sun in the picture, it's summer in the southern hemisphere and winter in the northern hemisphere. When the earth is on the other side of the sun in its orbit, the northern hemisphere is tilted toward the sun, so it's summer in California, Europe, etc. and its winter in Australia.
As you can see from the picture, the earth is closer to the sun during winter in the northern hemisphere (when the earth is on the left side in the picture) but its colder because of the tilt of the earth.