The+Moon


 * The Moon  ☽ **

1. Why are there many more craters in the moon than on earth? This is due to the lack of the atmosphere of the moon. When the meteors enter the atmosphere of the earth, it burns due to the speed and the friction with the air, except the big ones, which hit the earth as small bodies because of the friction too. In the moon, there is no atmosphere, so when meteors come, they hit the moon with their full speed power, which causes the craters. 2. About how far away is the moon from us? About how many times would you have to walk around the earth at the equator to walk that same distance? The moon is 384,405 km far away from the earth. The distance of the equator of the earth is 40,075 km, so any human needs to walk around the earth 9.6 times to walk the same distance from the earth to the moon. 3. About how far away is the sun from us? About 150 million kilometers. 4. What is special about December 21 and June 21 in a 12-month calendar, and how do these relate to the tilt of our planet? December 21 is the first day of the winter on the northern hemisphere and the first day of the summer on the southern hemisphere, and that due to the fulcrum of the sunlight on the tropic Capricorn. June 21 is the opposite day; it’s the first day of summer on the northern hemisphere, and the first day of winter on the southern one, and that’s because the sunlight points on the tropic of Cancer. 5. What is the moon made of, roughly, and how old is it? The moon is basically made of rocks and soil. It’s about 3.8 and 4.1 billion years old. 6. Give two different theories of how the moon was created and explain which one you believe in. · A Mars-sized body hit the nearly formed proto-Earth, blasting material into orbit around the proto-Earth, which accreted to form the Moon. · Fission of the Moon from the Earth's crust through centrifugal forces. I agree and believe in the first one, because there must be a big force that hits the earth and makes the flying parts unite together to form the moon, so the second one might be wrong that the force was from the centrifugal forces, because there is doubt in this theory, and it’s level of validity, and the force of hitting the earth is bigger. 7. Use different forms of the root word, ‘lun’ in three different sentences. Explain the meaning. · Rally drivers have //lunacy,// shown by the way they drive. Lunacy: being insane and out of control. · // Luna // started in 1959, and ended in 1976. Luna: a series of soviet moon probes and experiments. · Today is the first day of the second //lunation// in this year. Lunation: a name of a lunar month.
 * Definitions **
 * Axis ** : an imaginary line about which a body rotates.
 * Ellipse ** : a regular oval shape.
 * Eclipse ** : an obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination.
 * Orbit ** : the curved path of a celestial object or spacecraft around a star, planet, or moon, esp. a periodic elliptical revolution.
 * Spin ** : a rapid turning or whirling motion.
 * Rotation ** : the action of rotating around an axis or center.
 * Luminosity ** : the intrinsic brightness of a celestial object.
 * Escape velocity ** : the lowest velocity that a body must have in order to escape the gravitational attraction of a particular planet or other object.
 * Writing: **