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SNC 1D
Astronomy Review
Name:
Terms
planets, solar plane, solar system, solar prominence, sun spots, solar flare, solar wind, photosphere,
corona, inner planets, outer planets, astronomical unit (AU), light year, asteroids, comets, meteor,
meteorite, total eclipse, partial eclipse, umbra, penumbra, solar mass, red dwarf, main sequence, white
dwarf, red giant, supergiant, nebula, fusion, black dwarf, supernova, neutron star, black hole,
triangulation, Milky Way, galaxy, Doppler effect, red-shift, Hubble’s law, Big Bang theory, quasar,
gamma ray bursts
The Sun
1. Label the diagram of the sun with the following terms:
core, radiation layer, convection layer, photosphere, corona, chromosphere
2. Label the following diagram of a lunar eclipse with the following terms.
Sun, Moon, Earth, umbra, penumbra, total eclipse, partial eclipse
The Planets & Their Moons
1. Which celestial body am I?
a) I am red because of the iron in my soil.
b) My atmosphere is made up of mainly CO2 so I am very hot.
c) I rotate 90° to the solar plane.
d) I have the Giant Dark Spot.
e) I have liquid water present on my surface.
f) I have a huge iron core that is 80% of my mass.
g) I am a yellowish planet most famous for my rings.
h) I have the Great Red Spot.
i) I am a moon with an atmosphere.
j) I am boiling hot during the day and freezing cold during the night.
Other Solar System Bodies
1. Where are most asteroids located?
2. What theory do most scientists believe for the formation of our moon?
3. What is the difference between a meteoroid, meteor and a meteorite?
4. Where is the Kuiper Belt and Oort Cloud? What do astronomers believe happens there?
5. Why are there so many more craters on Mercury than on the other inner planets?
Electromagnetic Spectrum
Which wave length is longer? Which has more energy?
a) X-ray or ultraviolet radiation?
b) Radio wave or microwave?
c) Visible light or infrared radiation?
Stars
1. How is a star made?
2. What elements are present in the following “Mystery Stars”?
3. Label the Hertzsprung-Russell diagram with the following words.
4.
5.
6.
a)
b)
c)
List the colours of stars from coldest to hottest. (blue, red, white, yellow, orange)
At what temperature does nuclear fusion begin?
When a star dies, it becomes a:
low mass star 
intermediate mass star 
massive star  (two options)
Galaxies & the Big Bang
1. What are the three possible types of galaxies? (shapes on right)
2. Identify the type of galaxy.
3. Describe the theory of the Big Bang.
4. What is the evidence for the Big Bang?