Transcript Astronomy
Astronomy Stars, Planets, Galaxies and More! KW(L) 1. What is astronomy? 2. What do you already know about astronomy? (At least 5 things) 3. What would you like to learn about astronomy (At Least 3 questions you want answered) KW(L) Stars planets telescope gravity sun solar system Space black holes space shuttle Hubble light years orbit asteroid Pluto I. California Standards A. True or False: True or False: holds the Earth 8.2.d know to identify GravityStudents is not acting on how Gravity orbit around the astronauts the orbiting separately two or moreinforces that are Sun. Earth. acting on a single static object, including gravity, elastic forces due to tension or Are we going toin matter, and friction. compression do any cool B. 8.2.g Students know the role of gravity in Are we going to projects? – forming and shapes on anyof field Alondra & maintaining thego planets, stars, and the solar system. trips? - Evelyn Evelyn II. What Is Astronomy? A. “Astronomy is the study of all the things in space.” –Jimmy Gonzalez B. People who study astronomy are called astronomers. Does astronomy affect our lives? Is astronomy important? Why or why not? – Kimberly Lopez III. Why study astronomy? A. Understand our own planet B. Understand the nature of matter and energy 1. Save the Earth by generating electricity without polluting our environment. 2. Find or engineer particles that can be used to make new materials for medicine, construction, protection … or invisibility! C. Search for life on other planets – understand life on our own planet D. Protect ourselves from dangers in space. IV. Gravity Does your cat exert gravity? How do you know? Does the air around you exert gravity? How do you know? A. Is a force B. Pulls down (toward ____________________) C. Is responsible for the formation of stars and What does gravity planets (and their round shape!) have to do with Why is Earth space? round? - Fryeda D. Holds solar systems and galaxies together E. All matter exerts gravity. Does your cell phone exert gravity? How do you know? IV. Gravity So why don’t you feel your cell phone pulling on you? Hint The mass of an average house cat: 4.5 kg The mass of Earth: 6,000,000,000,000,000,000,000,000 kg IV. Gravity F. Since gravity is a property of matter, the more matter an object has, the more gravity it exerts. Which exerts the least gravity: the sun, the Earth or the moon? How do you know? IV. Gravity G. The strength of gravity varies depending on Put your order 1. Mass: The more mass an object has,cards the in more from the pair with the gravity it exerts. If gravity is acting on astronauts, do Put your cards inwhy order they seem be from the pair withtothe weightless? most gravity between most gravity between them to the ones with the least. 2. Distance: Distance: The closer two objects are to them to the ones with each other, the greater the force of gravity is the least. between them.