1. Make up Bellwork

2. 1.What are the 4 inner planets? List them in order. 2.One Astronomical Unit (AU) is equal to _____ million kilometers 3. _____ has the largest volcano in the solar system called _____ ____ 4. When planets in the night sky appear to move backwards we call it _______ motion 5. Retrograde motion provides evidence that the planets are closer to us than the ______ Answer Bank Olympus Mons Mercury stars Retrograde Mars Venus Earth 150 Bellwork

3. 1)_____ has a greenhouse effect similar to earth, but much more severe 2)_____has Olympus Mons & is covered with iron oxide 3)Because Planets are _____, they move ______ than stars in the night sky 4) A planet that is 150 million km, or 1 AU, from the sun is _____. 5)The inner planets have____ orbital velocities and the outer planets have ____ orbital 6)The backwards motion of planets is called________ motion Answer Bank fast Mars faster Earth slow Venus Retrograde closer Bellwork

4. 1._______ is approximately 1 Astronomical Unit from the Sun 2. The planets are extremely far _____ and difficult to reach by spacecraft 3. The inner planets are ____and therefore ____dense 4. The outer planets are _____ and are therefore _____dense Answer Bank more rocky gassy Earth Apart less Bellwork

5. 1.Saturn has a very low density, this is because Saturn is a ______ planet. 2.Compared to the outer planets, the inner planets orbit much______ and _______to the sun. 3.Mars is more dense than the outer planets because mars is a______ planet 4._____ gives Uranus and Neptune its blue green color. 5.The inner planets are made mostly of____&______ 6.Outer Jovian planets are made mostly of ______ & ______ Answer Bank Methane Iron & silica Gassy faster Smaller rocky Closer Hydrogen & Helium Bellwork

6. 1)_____ ____ is the phase of the moon that is completely lit up. 2)As the moon goes around the earth, _____ is lit up and half is in ______ and as a result, we see _______of the moon 3)True or False, lunar phases are caused by the earth’s shadow 4)A solar eclipse is when the _____ is between the earth and sun. Answer Bank moon Full moon eclipses half Earth darkness phases Retrograde closer Bellwork