Earth+and+Space+Review+Questions

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=Earth and Space Science Exam Review=

Rotation & Revolution
orbit, revolution, rotation, day, horizon, axis, motion, tilted, sunset, half, light, dark, sunrise
 *  Word bank: **

The Earth spins on its _ _ _. The axis is _ _ _ on an angle. Our Sun lights up _ _ _ the Earth. This turning of the Earth on its axis is called its _ _ _.

Label the **Sun**, the **Earth**, and the **axis**. Shade in the dark side of Earth. Label the **night** side and the **day** side of the Earth. As the Earth rotates, we go from light to _ _ _ and back to _ _ _ again. One complete rotation is called a _ _ _.

As we move from the dark half to the light half, the sun appears to rise on the _ _ _. The Sun appears to move upward so we call this time of day _ _ _. When we go from the light half to the dark half, the sun disappears. We call this time of day _ _ _.

Shade in the night side of this diagram. The flag is spinning with the Earth. Write the number in the space beside the correct time: 12:00 AM (midnight) 12:00 PM (noon) 9:00 AM 5:00 AM



In the winter, sun light rays are more: _ _ _ (direct, indirect). In the summer, sun light rays are more: _ _ _ (direct, indirect). Seasons do occur at the equator but they’re not as noticeable as at higher latitudes.

Additional Questions

 * Note: No word bank! **

1 The longest daylight period in the northern hemisphere is on _ _ _.

2 The longest daylight period in the southern hemisphere is on _ _ _.

3 In the northern hemisphere on: June 21st we will receive more hours of **daylight** or **darkness**? _ _ _ . March 21st daylight = _ _ _ hours and darkness = _ _ _ hours. December 21st we will receive **more** or **less** hours of daylight? _ _ _ . September 21st, **more**, **less** or the **same** # of hours of daylight & darkness? _ _ _.

4 On certain dates, all places on Earth experience equal hours of day and night. When do we experience this?

Explain why.

5 In the summer how is the Earth tilted relative to the Sun in the (a) northern hemisphere and the (b) southern hemisphere?

6 What causes seasons?

7 What unit do we use to measure distances to stars? To our Sun?

8 Our solar system was formed from a cloud of gas called a nebula. What do scientists think are the steps in the formation of the Solar System (chapter 15.2).

9 According to Bill Nye a basketball court would be needed to make a scale model of our Solar System. Explain why we couldn’t use a smaller area.