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By the end of today… SWBAT explain the differences between Terrestrial planets and Jovian planets. My Very Educated Mother Just Served Us Noodles Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Key Point #1: There are two groups of planets. The Terrestrial planets are the “inner planets,” while the Jovian planets are the “outer planets.” Terrestrial Planets: Mercury Venus Earth Mars Jovian Planets: Jupiter Saturn Uranus Neptune Pg. 63 Key Point #2: The Terrestrial planets are small, dense, and have rocky surfaces. Pg. 71 Key Point #3: The Jovian planets, or the “gas giants,” are much larger and less dense than the Terrestrial planets. They are also composed primarily out of gases. What does it mean for something to be less dense? Why does it make sense that the Jovian planets are less dense? How dense something ishow tightly packed its mass is Jovians planets are made out of gas = less dense Discovered in 1930 After, realized that Pluto was very, very small. Pluto has a weird orbit Other larger objects around Pluto discovered Exact definition of a “planet” voted on in 2006 Pluto declared a “dwarf planet” because it did not meet the criteria List two differences between the Terrestrial planets and the Jovian planets.