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Planet Matchup - Digital Task Card 1
Planet Matchup - Digital Task Card 1

... 9. This is another gas giant, and the 8th planet from the sun. 10. This second-largest planet is so light that if there were a bathtub big enough, it would float in water. Copyright © 2011 Savetz Publishing Inc. • www.InstantWorksheets.net ...
here - Just A Theory
here - Just A Theory

... Obviously high speeds are desirable because you want to get somewhere as fast as possible, however, that does not mean high speeds are necessary. It has been suggested that galactic colonisation by robotic probes could take 5-50 million years, not long on a galactic timescale.[13] These so called Br ...
Space - cloudfront.net
Space - cloudfront.net

... Neptune Neptune is the fourth biggest planet and the eighth from the sun. Neptune was first discovered by Galle and d’arrest on 1846 September 23.It takes 164.79 Earth years to orbit the sun (much longer from sun so it takes longer ...
Planet Definition - Porterville College Home
Planet Definition - Porterville College Home

... (2) We distinguish between the eight classical planets discovered before 1900, which move in nearly circular orbits close to the ecliptic plane, and other planetary objects in orbit around the Sun. All of these other objects are smaller than Mercury. We recognize that Ceres is a planet by the above ...
Planet Definition
Planet Definition

... (2) We distinguish between the eight classical planets discovered before 1900, which move in nearly circular orbits close to the ecliptic plane, and other planetary objects in orbit around the Sun. All of these other objects are smaller than Mercury. We recognize that Ceres is a planet by the above ...
Science Journals * 3-18-13
Science Journals * 3-18-13

... • There are billions and billions of stars in the galaxy. • To make writing the mass of these stars easier, the Sun is the frame of reference and the Sun is equal to one solar mass. • Smaller stars < one solar mass • Larger stars> one solar mass ...
Astronomical Units and Light Years #2
Astronomical Units and Light Years #2

... While the sun is often referred to as the most important star within our solar system, it is certainly not the only one. There are too many stars for us to even begin to count. See how many you can count while gazing up at the sky on a clear night. Not only are there too many stars to count but, the ...
The Sun - rosedalegrade9astronomy
The Sun - rosedalegrade9astronomy

... – Is our nearest star. It is 5 billion years old. – It will last another 5 billion years – Has the mass of more than 300 000 Earths – So big that gravity forces everything together so tight that there are nuclear reactions and a great amount of heat. -Hydrogen atoms are squashed together to form hel ...
Lecture 3
Lecture 3

... Understanding Planetary Motion • Use experimental observations (made prior to telescopes) to understand motion of the planets • Leads to Kepler’s 3 laws of planetary motion • Provides experimental observations which are later explained by physics developed by Galileo, Newton and others ...
Name____________________________________________________________________ Astronomy Packet 3
Name____________________________________________________________________ Astronomy Packet 3

... what Italian astronomer to reexamine the heavens? ______________________.Using this tool Galileo was able to see that the moon was not_______________ but was able to see______________ and ____________________ as well what he thought were _____________________but was actually ________________________ ...
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... – hypotheses that have withstood observational or experimental tests  Theory – a body of related hypotheses can be pieced together into a self consistent description of nature  Laws of Physics – theories that accurately describe the workings of physical reality, have stood the test of time and bee ...
Gravity Review
Gravity Review

... The radius of Mars is approximately onehalf the radius of Earth, and the mass of Mars is approximately one-tenth the mass of Earth. Compared to the acceleration due to gravity on the surface of Earth, the acceleration due to gravity on the surface of Mars is A. smaller B. larger C. the same ...
What do we mean by habitable zone?
What do we mean by habitable zone?

... the Earth out to 2 AU, I would expect the Earth’s internal heat to produce a region favorable to liquid water a few miles down in the crust. Why couldn’t life originate there? • Even if oceans of liquid water are required for life, we have examples in our own Solar System of such oceans far from the ...
Jeopardy
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... This planet has more water on the surface than any other planet (there are moons with more). ...
Sir Isaac Newton
Sir Isaac Newton

... Egypt) saw the sun at an angle on that day. The angular displacement was measured.  Using simple geometry, he calculated the circumference and the radius of the Earth.  The result was within 1 percent accuracy of the figure known today. ...
Name: Period : _____ Bulldog Review #9 1. The Milky Wa
Name: Period : _____ Bulldog Review #9 1. The Milky Wa

... B. Gravity is a force that causes objects to move toward the center of the Earth. Gravity is caused by tectonic plate movement. C. Gravity is the force that is formed in the crust of the planet and it holds objects to the surface of the Earth. D. Gravity is the natural force that causes objects to m ...
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... • The other system classifies planets whose orbits are between Earth’s orbit and the Sun as inferior planets, and those whose orbits are beyond Earth’s orbit as superior planets. ...
chapter 8 Notes
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... •  Neptune, another large planet similar in size to Uranus, is the eighth planet from the Sun. •  Neptune’s atmosphere is similar to that of Uranus, but has a little more methane— about 3 percent—causing it to look bluer. ...
Jeopardy-Astronomy
Jeopardy-Astronomy

... dust and gas from which a star is formed ...
Review Sheet - University of Mount Union
Review Sheet - University of Mount Union

... 14. What is retrograde motion? How did Ptolemy and Copernicus each try to explain it? 15. What are Kepler's laws? 16. How did Tycho's supernova & comet contribute to the changing of ideas about the heavens? 17. Why were Galileo's observations so important? What did he observe? 18. What motion do we ...
Planetary System Formation, Extrasolar Planets, Life in the Universe
Planetary System Formation, Extrasolar Planets, Life in the Universe

... • The unsuccessful Beagle 2 mission to Mars was to carry out a different set of biological experiments on samples taken from the interiors of rocks • These experiments may be attempted again on a future mission ...
SNC 1D Astonomy
SNC 1D Astonomy

... revolution around the sun is 365.24 days. • It takes one day for Earth to make one rotation on its axis. • The first clocks were pillars and sticks in the ground and people used the shadows they made to tell the time. ...
The Lives of Stars
The Lives of Stars

... Astronomers speculate that stars form from gas and dust clouds called nebulae Gravity pulls the material togethe Accumulating gas increases temperature At 10,000,000 degrees nuclear fusion begins (transformation of hydrogen into helium) ...
PPT - El Camino College
PPT - El Camino College

... – Collisions can destroy small planetesimals. – What’s left at the end? – What’s the temperature like near the Sun? • Gases won’t stay on the planets ...
4.7_Earth,_Moon,_Sun
4.7_Earth,_Moon,_Sun

... This standard focuses on the Earth-moon-sun system and includes knowledge related to the motions of this system and the results of our unique position in it. This includes the presence of an atmosphere, liquid water, and life. It is intended that students will actively develop scientific investigati ...
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Extraterrestrial life



Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an ""extraterrestrial"" or ""alien"" (or, to avoid confusion with the legal sense of ""alien"", a ""space alien""). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood's involvement, has increased the public's interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.
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