Name: Pd. Date: The Universe Astronomy – Mercury Header and Venus Follow along with the video and answer the questions. The questions are in order of their appearance in the show. # 1 Question How many Earth days is one year on Venus? 2 Why is Venus called Earth’s Twin? 3 Name nn basic differences between Mercury and Venus? 4 What process causes Venus to be so hot? 5 What is Venus’ atmosphere composed of? 6 About how hot is Venus? 7 What triggers the lightning in Venus’ lower atmosphere? Where are scientists studying on Earth to understand features on Venus? What is most of Venus’ surface made of? 8 9 10 12 If you were on the surface of Venus, how would daylight there compare to Earth? In comparing canyons on Venus to canyons on Earth, such the Grand Canyon which was carved by water, what were the canyons on Venus carved by? Is Mercury ever visible all night? 13 Why doesn’t Mercury have an atmosphere? 14 Is Mercury an active planet? 15 How long does it take for Mercury to revolve around the Sun? How long does it take Mercury to spin on its own axis? 11 16 17 18 19 20 21 Name: Answer What does daylight on Mercury look like during the day? What was the most surprising thing scientists found at the poles of Mercury? Where do they think this material came from? What are the two most important processes that affected Mercury’s surface? What is the name of the mission that is currently mapping the surface of Mercury? KEY Pd. Dottie Edwards, Strasburg High School, Strasburg, VA, Shenandoah County Public Schools The Universe – Mercury and Venus Date: Astronomy Header Follow along with the video and answer the questions. The questions are in order of their appearance in the show. # 1 Question How many Earth days is one year on Venus? 225 Days Why is Venus called Earth’s Twin? Closeness in: gravity, size, composition and density 3 Name nn basic differences between Mercury and Venus? Meteors strike it often, Slow retrograde (backwards) rotation, long days 4 What process causes Venus to be so hot? Greenhouse Effect (runaway) 5 What is Venus’ atmosphere composed of? CO2 6 About how hot is Venus? 900oF 7 What triggers the lightning in Venus’ lower atmosphere? Where are scientists studying on Earth to understand features on Venus? What is most of Venus’ surface made of? Cosmic Particles Darker 12 If you were on the surface of Venus, how would daylight there compare to Earth? In comparing canyons on Venus to canyons on Earth, such the Grand Canyon which was carved by water, what were the canyons on Venus carved by? Is Mercury ever visible all night? 13 Why doesn’t Mercury have an atmosphere? 14 Is Mercury an active planet? 15 How long does it take for Mercury to revolve around the Sun? How long does it take Mercury to spin on its own axis? 8 9 10 11 16 17 18 19 20 21 Answer Hawaiian volcanoes (Kilauea) Volcanic Rock (Basalt) Volcanic lava What does daylight on Mercury look like during the day? What was the most surprising thing scientists found at the poles of Mercury? Where do they think this material came from? What are the two most important processes that affected Mercury’s surface? What is the name of the mission that is currently mapping the surface of Mercury? Dottie Edwards, Strasburg High School, Strasburg, VA, Shenandoah County Public Schools