Time

**The Big Bang Theory**
1) About how long ago did the big bang take place? 13.7 billion years ago. 2) What is a black hole? A black hole is a theoretical entity predicted by the equations of general relativity. 3) Does the universe continue to expand? Expansion may continue more slowly, 4) Was there really a big bang? It's a theory. That means it could have happened or it didn't. 5) What light elements seem to support the Big Bang Theory?

Lunar A year that skips a day consistently hot.
 * 1) What is the current calendar most of the world uses / accepts? Explain who made it and why this is accepted.**
 * 2) What is a leap year?**
 * 3) List three other types of calendars used and how they set up their calendar (ex. Lunar).**
 * -** One type of calendar is the lunar calendar, which is based on the month (Moon). A lunar calendar year is 12 synodic months long, where a synodic month is the time interval in which the phases of the Moon repeat (from one full moon to the next), and averages 29.53 days. Thus, a lunar calendar year averages 354.37 days long. Because Earth takes slightly longer than 365 days to revolve completely around the Sun, a lunar calendar soon gets out of phase with the seasons. Thus, most lunar calendars have died out over the centuries. The main exception is the Muslim calendar, which is used in Islamic countries, most of which are in or near Earth's Torrid Zone, where seasonal variation of climate is slight or non-existent, and the climate is usually

The second type of calendar is the lunar-solar calendar, in which most years are 12 synodic months long, but a thirteenth month is inserted every few years to keep the calendar in phase with the seasons. There are two important surviving lunar-solar calendars: the Hebrew (Jewish) calendar, which is used by the Jewish religion, and the Chinese calendar, which is used extensively in eastern Asia

The third type of calendar is the solar calendar, which is based on the length of the year. Our present calendar is of this type; however, it evolved from the ancient Roman calendar, which passed through the stage of being a lunar-solar calendar.

Before Christ Before Common Era After death Common Era
 * 4) What is BC?**
 * 5) What is BCE?**
 * 6) What is AD?**
 * 7) What is CE?**
 * 8) What is MYA?**


 * 9) According to the timeline site how many periods of when are there and list time.**


 * 10) What is an eon, epoch, era, and age?**


 * 11) List three ancient calendars**


 * 12) List two ancient clocks and how they worked.**


 * 13) What was a revolution of timekeeping?**


 * 14) What allows for standard more accurate clocks?**

The Prime Meridian is the meridian(line of longitude) at which the longitude is defined to be 0°.
 * 15) What are time zones?**
 * Times for different parts of the world that are usually lined up.**
 * 16) What is the prime meridian?**
 * 17) If it’s 10:00 AM in Regina, what time is it in Toronto? London? Moscow? Tokyo? Hawaii?**

It is when we turn off all the power in a house for an hour. We do use it here in Saskatchewan
 * 18) What is Daylight Saving Time? Do we use this in Saskatchewan?**
 * 19) Is there a year zero?**

We are starting a new decade in 2011
 * 20) Are we starting a new decade in 2010 or 2011?**
 * 21) What is linear time?**


 * 22) What is cyclical time?**