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- 1. Multiple ChoiceThe four inner planets are...Rocky and smallVery large and made of iceSmall and made of iceVery large and made of gases
- 2. Multiple ChoiceThe outer planets are...Rocky and smallVery large and made of iceSmall and made of iceVery large and made of gases
- 3. Multiple ChoiceWhich two planets are out of order in this list of our solar system?
Mercury-Earth-Venus-Mars-Jupiter-Saturn-Uranus-Neptune-Pluto.Mercury and EarthEarth and VenusSaturn and JupiterUranus and Neptune - 4. Multiple ChoiceHow does a telescope help us understand the moon?It tells us how it was formedIt tells us how hot it is thereIt helps us see surface featuresIt can tell us what the moon is made of
- 5. Multiple ChoiceA probe landed on Mars and did a soil test. What information did it discover?There are no living organisms in Martian soil.Mars is slightly oval in shape.Mars is about one-fourth the size of Earth.The gravity on Mars is much less than on Earth.
- 6. Multiple ChoiceWhy is space travel difficult for people?We cannot take the air or food we need into spacethe distance are very great; it is dangerous and expensive.It is impossible to escape the sun's or Earth's gravity.We do not have a destination to visit that we know will support life.
- 7. Multiple ChoiceWhat holds the planets in their orbits around the sun?gravityspeedstringair currents
- 8. Multiple ChoiceWhich object has the most gravity?EarthmoonJupitersun
- 9. Multiple ChoiceWithout gravity, what would be the shape of the solar system?Planets would revolve in perfect circlesMuch different than it is now.Planets' orbits would crossAll planets would be in the same orbit
- 10. Multiple Choice
Does this graph show relative size or distance from the sun of the planets?It shows both size and distance.It does not show size or distance.It shows distance from the sunIt shows relative size. - Answer choicesTagsAnswer choicesTags