Class 2 Summary and Practice Test

1. True or False: The Moon appears to change shape gradually from being invisible to becoming crescent shape and gradually bigger until it is round; and then gradually changes back to becoming invisble. [Answer]

2. When the Moon is invisible it is called Full Moon. [Answer]

3. How long is the time period from one New Moon to the next. [Answer]

4. Is Venus sometimes visible at night without the aid of a telescope? [Answer]

5. When Venus is visible, what does it closely resemble? [Answer]

6. Are any other planets sometimes visible at night, and if so, what are they and what do they look like when they are visible? [Answer]

7. Do planets and stars look very similar when viewed through a large telescope? [Answer]

8. Are any planets not visible without the aid of a telescope? [Answer]

9. From the point of view of a person on earth looking up at the night sky, what is the most obvious difference between the appearance of a star and a planet. [Answer]

10. Does Venus rise and set in a manner similar to the Sun? [Answer]

11. What is the approximate time it takes from the time Venus rises to the next time it rises. [Answer]

12. What about the other planets? Do they rise and set like the Sun? [Answer]

13. What about the other stars (that is, the stars that make up the constellations). Do they also rise and set every 24 hours? [Answer]

14. Why do some stars not rise and set? [Answer]

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