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...  To know that the Earth is part of the Solar System  To know that the Solar System includes The Earth, The Sun and nine planets  To know that The Sun is the most important part of the Solar system because it keeps the planets in their orbits  To know that the Earth takes 365 days and 8 hours to ...
Midterm 2     Wednesday (Feb 29)
Midterm 2 Wednesday (Feb 29)

... • You should know about all of the things I have discussed in class since Midterm 1. • This study guide just gives some of the high points. • Study your lecture notes first, then use your textbook to help you understand your notes. • Add pgs 333-336 “Star Birth” to the reading suggestions given in t ...
25.1
25.1

... 6. Is the following sentence true or false? The first heliocentric model false was widely accepted by most ancient Greeks. Physical Science Reading and Study Workbook ...
Our solar system
Our solar system

... is larger. Saturn has seven thin, flat rings around it. Saturn's diameter at its equator is 74,600 miles which is almost ten times that of Earth. The planet can be seen from Earth but its rings cannot. Saturn's rings are made up of billions of pieces of rocks and dust. The atmosphere of Saturn compr ...
An Outer Space Adventure
An Outer Space Adventure

...  The Sun is the only part of the Solar System that is burning and exploding every second  The Sun is the only thing that produces heat in our Solar System  From Earth, the Sun appears to rise in the East and set in the West, but the sun never ...
Find the Planet Facts
Find the Planet Facts

... How long would your day and night be if you lived on the equator of Uranus? How are asteroids different from some of the planets in our solar system? Neptune: In what way is “The Great Dark Spot” on Neptune similar to the “Great Red Spot” on Jupiter? Jupiter: If you were looking for a place to visit ...
Chapter 3 Case Studies and Study Guide: The Solar System and the
Chapter 3 Case Studies and Study Guide: The Solar System and the

... The universe contains a large number of galaxies that in turn contain a large number of solar systems. Our Solar System has a sun, eight planets, five dwarf planets, asteroids, comets and other celestial bodies. The universe is about 14 billion years old, while Earth is about 4.5 billion years old. ...
3.1 Historical Solar System Models Can you list 3 characteristics of
3.1 Historical Solar System Models Can you list 3 characteristics of

... • When the Sun and Moon line up their gravitational pull causes what type of tide? ...
Current Events in Solar System Exploration
Current Events in Solar System Exploration

... DESCRIPTION: Multimedia show with narration While not tied to curriculum, this PowerPoint show can provide a stimulating and fun introduction to the astronomy unit, a capstone at the end of the unit, or something to use the last week of school in June. It capitalizes on the magnificent imagery we ar ...
The Solar System Around Us - Grosse Pointe Public School System
The Solar System Around Us - Grosse Pointe Public School System

... • Reddish in color • contains spikes of gas called spicules that rise through it ...
Solar System Science
Solar System Science

...  Jupiter is 2x as large as the other 8 planets put together. ...
Chapter 27 Formation of the Solar System
Chapter 27 Formation of the Solar System

... outgassing, some of Earth’s water may have come from space in the form of ice from comets. • As Earth cooled, water vapor condensed to form rain that collected on the surface. • First it was all freshwater then later minerals such as salt (halite) were washed and eroded in to it. ...
Homework 4 (due Tuesday, May 3, 2016)
Homework 4 (due Tuesday, May 3, 2016)

... condensed out of a flattened, spinning disk. Which of the following observations about the Solar System is not evidence for this theory? (A) (B) (C) (D) ...
Favorite Resources for Learning About the Earth, Moon, Sun, and
Favorite Resources for Learning About the Earth, Moon, Sun, and

... 1. Use words and pictures to describe the sun, moon, and earth. Use as many of these vocabulary words as you can: atmosphere, size, temperature, star, surface and planet. 2. Use words and pictures to describe how the sun and earth interact with each other. Use as many of these vocabulary words as yo ...
Homework 4 AST 301, Spring 2015 PLEASE ANSWER THIS
Homework 4 AST 301, Spring 2015 PLEASE ANSWER THIS

... condensed out of a flattened, spinning disk. Which of the following observations about the Solar System is not evidence for this theory? (A) (B) (C) (D) ...
SUN AND PLANET FACTS
SUN AND PLANET FACTS

... * formed from cloud of hydrogen gas and dust, 5 billion years ago * holds 99.85% of the mass of our solar system * 92% hydrogen and 8% helium * Core is 27 million degrees Fahrenheit * nuclear reactions of hydrogen atoms being forced together under high temperature and pressure to form helium * heat ...
Lines in the Sky
Lines in the Sky

... • Daily motion of sun (and nightly motion of stars) is due to Earth’s rotation. – Local noon occurs for an observer on the Earth when the Sun reaches its highest point in the sky during that day • That occurs when the Sun crosses the observer’s meridian, the line that runs due North to due South for ...
Unit 11: space,stars and planets The word in English The meaning
Unit 11: space,stars and planets The word in English The meaning

... *The sun and all the planets and moons make up the solar system. *An asteroid is a lump of rocky material in space. *There are more than 400000 asteroids. *Asteroids are going around the sun in their own orbits like small planets. * Meteorites are pieces of rock which don’t burn up completely before ...
early views of the universe
early views of the universe

... allowed him to observe the heavens. The telescope allowed him to make the observations that supported a heliocentric model of the universe • Galileo's telescope video ...
Kepler`s Laws
Kepler`s Laws

... The ideal setup for a communications satellite is to have it in a geo-stationary orbit, that is, to have its orbital motion synchronized with the rotation of the Earth, so that it remains above the same location on the Earth continuously. What would be the orbital period of such a satellite? What wo ...
Meteors and Meteorites
Meteors and Meteorites

... clear, dark night. Several times during the year, Earth passes through a stream of orbiting particles left by a comet. In the resulting meteor shower, you can see many meteors per hour. A meteor produced by a particle from a comet may last less than a second. Bits of rock or metal from asteroids may ...
Chapter 27
Chapter 27

... The second law, called the Law of Equal Areas, states that a planet sweeps out equal areas in equal amounts of time. This implies that the closer the planet is to the Sun, the faster it is moving in its orbit, which is due to the greater influence of gravity closer to the Sun. Kepler’s third law, th ...
Exploring our Solar System
Exploring our Solar System

... Earth is also spinning once each 24 hours the satellite stays above the same place on the Earth all the time. We call this a GEOSTATIONARY orbit. This orbit is used for communication satellites, like Sky TV. ...
Earth and Seasons Powerpoint
Earth and Seasons Powerpoint

... Distance from the sun does NOT cause our seasons. • If it did, we would all feel winter in July and summer in January. Even Hawaii would have a cold winter! ...
Read the rest of the press release
Read the rest of the press release

... The Laboratoire de Météorologie Dynamique is part of the Institut Pierre-Simon Laplace (IPSL). The project was granted an Ile-de-France Region post-doctoral research allowance. 2 It is estimated that at the origin of the Solar System 4.5 billion years ago, the Sun's luminosity was 70% of today's val ...
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Earth's rotation



Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. This point is distinct from the Earth's North Magnetic Pole. The South Pole is the other point where the Earth's axis of rotation intersects its surface, in Antarctica.The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation. Atomic clocks show that a modern-day is longer by about 1.7 milliseconds than a century ago, slowly increasing the rate at which UTC is adjusted by leap seconds.
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