Extraterrestrials (ALIENS!!!)Outcome:117-11 Analyse examples of Canadian extraterrestrial encounters.

WebQuest...For each slide, follow the instructions and go to the indicated website to answer any questions.Key Terms are in PINK.

ExtraterrestrialExtraterrestrial: Life that does not originate from Earth. It is unknown whether any such life exists. There is no evidence to this claim!The theorization of extraterrestrial life is known as astrobiology or exobiology (like exo-planets).

Extraterrestrial ExplanationsOne possibility to explain the existence of extraterrestrial life is that life has emerged independently at many places throughout the Universe. Another possibility is exogenesis, in which life would have spread between habitable planets.

Extraterrestrial What types of life count?Possible forms of extraterrestrial life range from simple bacteria-like organisms to sapient beings far more advanced than humans.

Extraterrestrial Where is this possible?Suggested locations on which life might have developed, or which might continue to host life today, include the following:Planets Venus and MarsMoons of Jupiter and Saturn (such as Europa and Titan)Extrasolar GOLDILOCKS planets

What is a goldilocks planet?Go to the following to find out the answer! What is a goldilocks planet? What does a planet need to have to classify as one?http://en.wikipedia.org/wiki/Goldilocks_planetRead the following article to determine some possible goldilocks planetshttp://www.newscientist.com/article/dn11710-goldilocks-planet-may-be-just-right-for-life.html

Evidence for Extraterrestrial LifeThe vast size of the observable universe and the number of galaxies, stars, planetary systems seems to suggest that life is very probable.Visit the website below and find at least 3 pieces of evidence that you find convincinghttp://www.newscientist.com/article/dn9943-top-10-controversial-pieces-of-evidence-for-extraterrestrial-life.html

Stephen HawkingThe following sites look at Stephen Hawkings view of aliens and extraterrestrial life (the first is a video, the second is text). What does he think? Do you agree with him?

http://abcnews.go.com/Technology/Space/stephen-hawking-alien-contact-risky/story?id=10478157

http://www.msnbc.msn.com/id/36769422/

UFOUFO: Unidentified Flying ObjectsMost UFO sightings are explained either as sightings of Earth-based aircraft or known astronomical objects, or as hoaxes. Some sightings have remained unexplained, in some cases having been reported by trained professionals.

UFO Sightings in Canada!Almost 10% of Canadians believe they have seen a UFO78% of Canadians believe in life on a planet other than Earth57% of Canadians believe that the government is hiding information about aliensInformation from: http://www.virtuallystrange.net/ufo/mufonontario/archive/97poll.htm

UFO Sightings in Canada!UFO Sightings in Canada: Go to the following website to find out where UFOs have been seen!Have there been any sightings in Nova Scotia? Where?http://www.ufoinfo.com/sightings/canada.shtml

UFO Sightings in Canada!On the next few slides, I have put the websites and also the newspaper articles for some famous Canadian alien or UFO sightings!!! Feel free to read/listen! Some are weird!

Shag Harbour SightingVisit the following website to see some CBC videos/radio clips of people describing UFO sightings! WEIRD!!!http://archives.cbc.ca/science_technology/unexplained/topics/725/This website discusses a famous sighting nearby in Shag Harbour!http://archives.cbc.ca/search?q=shag+harbour&RTy=0&RC=1&RP=1&RD=1&RA=0&th=1&x=0&y=0

Close Encounters of the Canadian Kind - Radiohttp://archives.cbc.ca/science_technology/unexplained/topics/725/7 min

One of Canadas earliest paranormal sightingsBroadcast date: Aug. 24, 1962

UFO Landing Sighthttp://archives.cbc.ca/science_technology/unexplained/topics/725/An invitation thats out of this world (July 2, 1967)

CBC TV cliphttp://archives.cbc.ca/science_technology/unexplained/clips/4343/3 min

Canadas famous UFO encounterBroadcast Date: Feb. 21, 1983

Radio Recording1986http://archives.cbc.ca/science_technology/unexplained/clips/4399/24 min

Alien Abductions in CanadaBroadcast date: Oct. 8, 1986

Crop Circles in Canada CBChttp://archives.cbc.ca/science_technology/unexplained/clips/4350/4 min

Crop Circles: Leaving a mark in CanadaBroadcast Date: Aug. 21, 1990

The Truth is Out Therehttp://archives.cbc.ca/science_technology/unexplained/topics/725/

Math and UFOsThe Drake EquationDeveloped by Frank Drake in 1961 as a way to focus on the factors which determine how many intelligent, communicating civilizations there are in our galaxy (Milky Way).

Go to the following equation and test out the theory!!!

http://www.activemind.com/Mysterious/Topics/SETI/drake_equation.html

What is Life???

What are the requirements for life as we know it?

Drake EquationThe Drake Equation is:N = N* x fp x ne x fl x fi x fc x L

where:N = # of civilizations in our galaxy with which communication might be possibleN* = number of stars in the Milky Wayfp = fraction of those stars that have planetsne = average number of planets that can potentially support life per star that has planetsf = the fraction of the above where life potentially evolvesfi = the fraction of the above that actually go on to develop intelligent lifefc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into spaceL = the length of time such civilizations release detectable signals into space

The Answer Find the number of civilizations in our galaxy with which communication might be possible, according to this equation using the current estimates indicated on the website!Now play around on the site using different probabilities (the page will do the calculations for you!)Do you think this equation is useful or not? Why?

Review Questions1) Key Terms: UFO, extraterrestrial, astrobiology or exobiology, goldilocks planet, exogenesis2) What are some possible explanations for extraterrestrial life?3) Where might extraterrestrial life exist? What kind of life is it?4) What is a goldilocks planet? Give an example.5) Give at least 3 pieces of evidence for extraterrestrial life. Do you think this is enough to convince you that aliens may exist? Why or why not?6) What does Stephen Hawking think about extraterrestrial life? Do you agree with him? Why or why not?7) What are UFOs? What are most UFO sightings deemed to be?8) Have there been any sightings in Nova Scotia? Where?9) Listen or read about some UFO sightings in Canada. Do these descriptions change your mind? Why or why not?10) Drake equation: Do you think this equation is useful or not? Why?