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16 Cards in this Set

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  • Back
What is a light year and what does it measure?
A light year is the distance light travels in a year and it is used to measure very large distances.
What is a light year and what does it measure?
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Sketch the Milky Way and place our sun in its correct location relative to the galaxy's center.
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Why does the sun appear to rise and set?
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Why do the constellations appear to move throughout the year?
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What motion causes a "day"?
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What motion causes a "year"?
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What is an astronomical unit and its distance in kilometers?
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Define the nebular theory and its sequence of events
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What two forces keep the planet in motion around the sun?
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Show the eight moon phases and their relationship to the Earth and Sun.
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Show the positions of the Earth, Sun and moon during a solar eclipse
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What causes the tides?
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Which type of telescope gathers light from objects in space?
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What does a human need to survive in space?
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How do people on Earth benefit from space exploration?
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