Order these smallest to largest: Diameter of the Sun to the nearest star, Distance from Milky way to nearest galaxy, Diameter of the Milky Way, Diameter of the Earth, Diameter of the solar system, Diameter of sun and Diameter of the Earth's orbit.
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Card 17
Front
How old roughly is the Earth, Sun and Universe?
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Card 18
Front
What does the colour that a star appears tell us about it?
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Card 19
Front
How can astronomers work out how far away a star is?
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Card 20
Front
How does parallax work?
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Card 21
Front
How much to stars seem to move if they are far away?
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Card 22
Front
How does the Earth's atmosphere and light pollution cause problems for astronomers when they are trying to detect light?
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Card 23
Front
What is the solution to the problems that light pollution and the Earth's atmosphere cause?
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Card 24
Front
How can we tell that a galaxy is moving away from us?
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Card 25
Front
How can we figure out how fast the galaxies are moving away from us?
