1 The Earth the Moon and the Sun 2 astronomer 3 365 1/4 days 4 24 hours 5 the seasons 6 More direct rays from the sun cause ________. summer Slanted rays from the sun cause _______. winter 7 Earth is the _______ planet from the sun. third 8 Earths surface is constantly _________. changing Earths surface is three-fourths _______. water 9 What 2 things make it possible for there to be life on Earth Water Air 10 What is at the center of our solar system 11 How much bigger is the suns diameter than the Earths 110 times 12 92 - 95 million miles 13 What is the sun made of Hot glowing gases 14 What are the dark patches visible on the suns surface Sunspots 15 What is the Earths only natural satellite 16 250000 miles 17 How big is the moon compared to the Earth One-fourth the size of the Earth 18 The moon has extreme temperatures. This means it is very ______ in the daytime and very ______ at night. hot cold 19 Why is it not possible for there to be life on the moon No air little water 20 What is the moons surface covered with Craters mountains and flat plains 21 We learned about the moon when
Astronauts collected rocks and soil from the moon
Astronauts set up experiments on the moon
22 full 23 What is the moon phase when all of the lighted side of the moon is turned away from us new 24 When the moon is ________ we see more of the lighted side each night. waxing When the moon is _______ we see less of the lighted side each night. waning 25 During which moon phase do we see only a very small part of the lighted side Crescent 26 During which phase do we see almost all of the lighted side of the moon Gibbous 27 During which moon phase is the moon between the Earth and the sun New Moon 28 Who believed in an earth-centered solar system Aristotle and Ptolemy 29 Who believed in a sun-centered solar system Galileo and Copernicus 30 Who built the first telescope Galileo
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