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Pershing Astronomy 4
Pershing Astronomy 4--A Family
| Question | Answer |
|---|---|
| What characteristics do terrestrial planets have? | they resemble Earth and have solid, rocky surfaces |
| Why would we always see the same side of the moon? | its period of rotation is the same as the period of revolution |
| What evidence do we have the supports the current theory about the moon's origin? | the moon rocks are similar to the Earth's mantle |
| How old do scientists think our solar system is? | 4.6 billion years |
| What is the current theory of the origin of our moon? | a large mass hit Earth and sent a piece of the mantle into space |
| What causes the phases of the moon? | the positions of the moon, sun and Earth |
| What body is most likely to have many craters? | a moon with no atmosphere |
| What system is used to rate the hazard level of an object coming towards Earth? | Torino scale |
| What is the main difference between asteroids and meteoroids? | main difference is the size--asteroids are larger |
| In what type of eclipse does the moon completely cover the sun? | total solar eclipse |
| What is the most useful unit for measuring distances within the solar system? | the astronomical unit |
| What do gas planets have that terrestrial planets do not? | an atmosphere that is has a very thick layer of gas |
| Why do active planets and moons have fewer impact craters? | their atmospheres burns up small objects and the wind and erosion remove many of the craters |
| What do we not have each month because the moon's orbit is tilted? | solar or lunar eclipses |
| What do we do to learn the history of our solar system | study smaller bodies such as comets or asteroids |
| Know the phases of the moon | |
| What is a meteoroid called after it has hit the Earth's surface? | meteorite |
| About how long does it take the moon to rotate on it's axis? | 29.5 days |
| About how long does it take our moon,Luna, to revolve around the Earth? | about one month |
| Which planets are called the terrestrial planets? | the inner planets |
| What are satellites? | natural or artificial objects that orbit larger objects |
| What do some scientists call comets? | dirty snowballs |
| Which moon is larger than the planet Mercury? | Ganymede |
| Which moon originated when a mass collided with Earth? | Luna |
| What is the name of the most volcanically active body in our solar system? | Io |
| Which moon seems to have broken apart and then put back together with gravity? | Miranda |
| Which moon's atmosphere may have been similar to the the Earth's early atmosphere? | Titan |
| Know the planets 9and dwarf planet) in order starting closest to the sun | M, V, E, M, J, S, U, N and P |
| Between which 2 planets is the asteroid belt located? | Mars and Jupiter |
Created by:
ellist
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