Download Name: Notes – #28 Mercury and Venus 1. Mercury and Venus are

Name: ___________________________
Notes – #28 Mercury and Venus
1. Mercury and Venus are __________________ planets.
2. Why is it difficult to study Mercury?
3. When Mercury passes across the face of the Sun, it is called a _______________.
4. True or False: Mercury is in synchronous rotation around the Sun.
5. When you observing a wave from an approaching wave emiiter, you get a __________
shift.
6. When you observe a wave from a wave emiiter moving away from you, you get a
__________ shift.
7. Mercury rotates ________ times about its axis for every _______ times it orbits the
Sun.
8. On Mercury, day time lasts ______ days and night time lasts ______ days.
9. Temperatures on Mercury are quite extreme. A big reason for this is that it has no
____________________.
10. True or False: Mercury has a lot of craters on its surface and looks very much like the
surface of the Moon.
11. Which planet is known as the Evening Star (and also the Morning Star)?
12. Other than the Moon and the Sun, which is the brightest object in the sky?
13. True or False: Venus has a hot steamy jungle on its surface.
14. Venus’s atmospheric pressure is _________ times Earth’s atmospheric pressure.
15. True or False: Venus has mountains and valleys.
16. True or False: Venus has many tectonic plates that move around like the Earth.
17. The temperature of Venus is ____________ … everywhere. This is about the melting
point of _____________.
18. The thick carbon dioxide layer on Venus heats up the atmosphere and surface of the
planet by absorbing the infrared radiation emitted from the surface. This is called the
_____________________ effect.
19. True or False: In moderation, the greenhouse effect on Earth is a good thing.
20. Without the greenhouse effect, the Earth’s temperature would be ________ F cooler.