Download 1 DS 3.10 Grade 9 Review

Grade 9 Astronomy Test Review
Concepts and terms to review:
□ astronomy
□ celestial objects
□ luminosity
□ sun
□ moon
□ planet
□ star
□ asteroid
□ comet
□ gas giant
□ solar system
□ nuclear fusion
□ astronomical unit (AU)
□ light-year
□ binary system
□ supernova
□ nebula
□ dwarf star
□ hydrogen & helium
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black hole
constellation
rotation
revolution
orbit
satellite
star cycle
moon phases
retrograde motion
atmosphere
heliocentric
geocentric
parts of the Sun
solar wind
electromagnetic
spectrum (light,
infrared, UV, etc…)
aurora borealis
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Doppler effect
colour of stars
star spectra
Hertzprung-Russell
diagram
solar eclipse
lunar eclipse
ocean tides
the environment of
space
risks of space travel
benefits of space
travel
technology in space
types of galaxies
neutron star
big bang theory
galaxy
Answer the following questions in full sentences:
1. Define the term non-luminous. Give an example of a non-luminous object in our
solar system.
2. Explain the difference between the terms rotation and revolution.
3. What is the Earth’s rotation and revolution?
4. What determines the seasons on Earth?
5. What determines day length on the Earth?
6. STATE 3 observations that ancient peoples made to discern that the Earth is not flat.
7. Name 3 constellations.
8. How many planets are there? Name them in order. Write down a sentence that
helps you remember the order of the planets.
9. Why is the Earth the best planet to sustain living things?
10. Which planet is no longer really considered a planet? Why?
11. Draw and label a picture of the sun and explain the importance of the following:
corona, chromosphere, solar flare, sunspot.
12. What are the two most common elements on the Sun?
13. Explain a lunar and solar eclipse.
14. What is nuclear fusion?
15. What does the colour of a star indicate?
16. What is a galaxy?
17. Name our galaxies and the group it is part of.
18. Describe 3 galaxy shapes.
19. Describe the 3 main stages of the formation of the solar system.
20. Explain the term red shift. What does this indicate about the universe?
21. Describe the Big Bang theory.
22. Be able to classify stars by colour and absolute magnitude – know where the
different types of stars are locate on The Hertzsprung-Russell Diagram.
23. Given the following elemental spectra, identify and list ALL of the elements
present in each of the three mystery stars shown below.