2 Bellwork What are the 4 inner planets? List them in order. One Astronomical Unit (AU) is equal to _____ million kilometers3. _____ has the largest volcano in the solar system called _____ ____4. When planets in the night sky appear to move backwards we call it _______ motion5. Retrograde motion provides evidence that the planets are closer to us than the ______Answer BankOlympus MonsMercurystarsRetrogradeMarsVenusEarth150
3 Bellwork _______ is approximately 1 Astronomical Unit from the Sun 2. The planets are extremely far _____ and difficult to reach by spacecraft3. The inner planets are ____and therefore ____dense4. The outer planets are _____ and are therefore _____denseAnswer BankmorerockygassyEarthApartless
4 Bellwork_____ ____ is the phase of the moon that is completely lit up.As the moon goes around the earth, _____ is lit up and half is in ______ and as a result, we see _______of the moonTrue or False, lunar phases are caused by the earth’s shadowA solar eclipse is when the _____ is between the earth and sun.Answer BankmoonFull mooneclipseshalfEarthdarknessphasesRetrogradecloser
5 Use the above diagram to answer the following questions…… Answer BankspinGravitybombardedAngularPlanetsaccretionUse the above diagram to answer the following questions……Which stage (A, B, or C) represent a collapsing nebula????_______ is when dust grains clump together we call itWhich stage (A, B, or C) represents planet formation?Which stage (A, B, or C) represents a spinning, flattening nebular cloud with a hot center?After the planets were formed, they were ______ by asteroids and meteoroids.
6 Bellwork_____ has a greenhouse effect similar to earth, but much more severe _____has Olympus Mons & is covered with iron oxideBecause Planets are _____, they move ______ than stars in the night sky A planet that is 150 million km, or 1 AU, from the sun is _____.The inner planets have____ orbital velocities and the outer planets have ____ orbitalThe backwards motion of planets is called________ motionAnswer BankfastMarsfasterEarthslowVenusRetrogradecloser
7 BellworkAnswer BankMethaneIron & silicaGassyfasterSmallerrockyCloserHydrogen & HeliumSaturn has a very low density, this is because Saturn is a ______ planet.Compared to the outer planets, the inner planets orbit much______ and _______to the sun.Mars is more dense than the outer planets because mars is a______ planet_____ gives Uranus and Neptune its blue green color .The inner planets are made mostly of____&______Outer Jovian planets are made mostly of ______ & ______
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