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Name: _____________________________________Date: ________________ Earth Science Mr. Herman Exeter SHS Chapter 23.2 The Terrestrial Planets Define: Terrestrial planets Draw and label the terrestrial planets of our solar system (remember to include the sun and the moons of the planets) color if you would like. Questions for discussion 1. Which terrestrial planet is the smallest (diameter)? 2. Which terrestrial planet has the most livable atmosphere? 3. What does an atmosphere do for a planet? 4. Which terrestrial planet has the most toxic atmosphere? What is it made out of? 5. What planet is called the “red planet”? 6. Why is it called the “red planet”? 7. What terrestrial planets have little to no atmosphere? 8. Why does it get so hot and then so cold on Mercury? 9. Why does Venus look yellow from space? 10. Why does the Earth look blue from space? 11. What is the physical separation between the terrestrial planets and the jovian planets? 12. What planet is called Earth’s twin? Why? 13. How many moons in total do the terrestrial planets include? 14. Why do you think the terrestrial planets are rocky in opposition to the gaseous jovian planets? Objective: Describe the distinguishing characteristics of each terrestrial planet Mercury: The Innermost Planet Mercury is the innermost and second smallest planet; it is hardly larger than Earth’s moon. Surface Features Mercury has cratered highlands, much like the moon, and vast smooth terrains that resemble maria. Surface Temperatures Mercury has the greatest temperature extremes of any planet. Mercury’s Surface Venus: The Veiled Planet Surface Temperatures The surface temperature of Venus reaches 475oC, and its atmosphere is 97 percent carbon dioxide. Venus is similar to Earth in size, density, mass, and location in the solar system. Thus, it has been referred to as “Earth’s twin.” Surface Features Venus is covered in thick clouds that visible light cannot penetrate. About 80 percent of Venus’s surface consists of plains covered by volcanic flow. Venus Mars: The Red Planet Water on Mars Some areas of Mars exhibit drainage patterns similar to those created by streams on Earth. Images from the Mars Global Surveyor indicate that groundwater has recently migrated to the surface. Water on Mars