Time

How long ago did the big bang take place? around 13.7 billion years ago.

What is a black Hole? Black holes are areas of intense gravitational pressure. The pressure is thought to be so intense that finite matter is actually squished into infinite density.

Does the universe continue to expand? It continues to expand and cool to this day and we are inside of it.

was there really a big bang? Experts however say that there was no explosion; there was (and continues to be) an expansion

what light elements seem to support the Big Bang theory Another misconception is that we tend to image the singularity as a little fireball appearing somewhere in space. According to the many experts however, space didn't exist prior to the Big Bang

1) What is the current calendar most of the world uses / accepts? Explain who made it and why this is accepted. The Gregorian calendar, also known as the Western calendar or the Christian calendar, is the internationally accepted  2) What is a leap year? Every year that is exactly divisible by four is a leap year, except for years that are exactly divisible by 100 3) List three other types of calendars used and how they set up their calendar (ex. Lunar) . Julian calendar, The use of BC and AD for numbering calendar years was invented by Dionysius Exiguus in 525 AD. His purpose was to determine the correct date for Easter under the direction of Pope St. John I, 4) What is BC?  The meaning of BC is Before Christ 5) What is BCE? BCE means Before Common Era. For example 400 BC is 400 BCE.  6) What is AD?  The meaning of AD is Anno Domini or Year of our Lord referring to the year of Christ’s birth 7) What is CE? CE is a recent term. It refers to Common Era and is used in place of A.D. the dates are the same ie 2009 AD is 2009 CE  8) What is MYA? Million years ago 9) According to the timeline site how many periods of when are there and list time. 14000 MYA- big bang; 4600 MYA -Formation Earth; 534 MYA -490 - Cambrian; 290MYA-248 MYA Mesozoic;3200 BC-1200 BC -Ice Age; 9000 BE -8000 BC First Settlemeants; 1200 MYA- 322 BC - 2nd Millennium BC; 332 BC - 63 BC 4th Century BC ; 63 BD- 476 - 1st Century BC; 330-1453 Byzantine; 476-1350 - Middle Ages; 1350-1600- Renaissance; 1500-1600- Refirmation; 1600-1800 -Enlightenment; 1750-1900 Industrial Age; 1900-2000 20th Century; 200-2099-21st Century; 2009- Future  10) What is an eon, epoch, era, and age? An era is a commonly used word for long period of time. an epoch means an instant in time chosen as the origin of a particular era. 11) List three ancient calendars, The Egyptian Calendar. Babylonian Calendar, and the early Roman Calendar

12) List two ancient clocks and how they worked. Sun Clocks Their moving shadows formed a kind of sundial, enabling people to partition the day into morning and afternoon.Water Clocks these were stone vessels with sloping sides that allowed water to drip at a nearly constant rate from a small hole near the bottom.  13) What was a revolution of timekeeping? In Europe during most of the Middle Ages (roughly 500 CE to 1500 CE), technological advancement virtually ceased 14) What allows for standard more accurate clocks? . In 1721, George Graham improved the pendulum clock's accuracy to 1 second per day by compensating for changes in the pendulum's length due to temperature variations.  15) What are time zones? A time zone is a region on [|Earth], more or less bounded by lines of [|longitude], that has a uniform. 16) What is the prime meridian? The prime meridian is the zero (0) line of longitude. The zero line of latitude is a given in the form of the equator, but for longitude the line was agreed on at an international conference at Washington DC in 1884.  17) If it’s 10:00 AM in Regina, what time is it in Toronto? London? Moscow? Tokyo? Hawaii?toronto- 9 AM London 8:00 Moscow 11:00 Tokyo 1 Am the next day-Hawaii 5 AM Toronto: 12 p.m. London: 12 p.m. Moscow: 8 p.m. Tokyo: 1 p.m. hawaii: 6 a.m.  18) What is Daylight Saving Time? Do we use this in Saskatchewan?  aylight Saving Time (or summertime as it is called in many countries) is a way of getting more light out of the day by advancing clocks by one hour during the summer. During Daylight Saving Time, the sun appears to rise one hour later in the morning, when people are usually asleep anyway, and sets one hour later in the evening, seeming to stretch the day longer. No we don't use it in saskatchewan  19) Is there a year zero? No

20) Are we starting a new decade in 2010 or 2011

21. Linear time is a concept where by time is seen sequentially, as a series of events that are leading toward something: beginning, and an end. In Newtonain theory it is something absolute in reality, regardless of human perception. 22. Circular time sees time as circula

**Geological Time Activities Part one Q & A.**

1) What happened at 12 AM January 1, 2004? Earth formed from planetary nebula 1/1/04 12:00 AM 2) What happened at 4:41 PM February, 25 2004? Inferred origin of life (first cells) 2/25/04 4:41 PM 3) How long of actual time happened between the event in question one and two? 700 million years. 4) What happen at 3:39 PM September 3, 2004? Oldest age-dated rocks on Earth 3/4/04 3:39 PM 5) What happened at 7:40 PM November 21, 2004? Ordovician system begins 11/21/04 7:40 PM 6) What happened at 1:27PM December 2, 2004? First sharks 12/2/04 1:27 PM 7) What happened at 12:09 PM December 12, 2004? End of Paleozoic, 96% of all life on Earth perishes 12/12/04 12:09 PM 8) What happened at 8:37 PM December 13, 2004? First dinosaurs (Eoraptor and Saltoposuchus) 12/13/04 8:37 PM 9) What happened at 7:52 PM December 26, 2004? 65 End of Mesozoic, probably meteor or comet impact 12/26/04 7:52 PM 10) What happened at 5:18 PM December 31, 2004? Oldest human like ancestors (hominids) 12/31/04 5:18 PM 11) What happened at 11:48 PM December 31, 2004? First modern man, Homo sapiens 12/31/04 11:48 PM 12) What happened at 12:00 AM January 1, 2005? 63 years World War II 1/1/05 12:00 AM 13) How long of actual time happened between the event in question 11 and 12? 62 years 14) How old is the Earth? 6.4 billion years 15) On the chart how many years are represented by one second.