Which is bigger? p. 13
What is a giant ball of superheated gas? p.13
Which is not true about a planet? p.13
A shooting star is really a star. p. 14
What is a cold mixture of dust and ice? p. 14
When will Halley's comet appear next? p.14
What is a pattern or group of stars that people imagine represents a figure, animal, or object? p. 15
The positions of objects in the sky depend on the motions of Earth. p. 16
The word __________ comes from a Greek word meaning "wanderer". p. 17
The planets all orbit the sun in different planes or levels. p. 17
Which model stated that the Earth was the center of the universe and everything revolved around it? p. 18
Which one these is not one of Galileo's evidence that supports the heliocentric model? p.19-20