Time

**Time**

1) About how long ago did the big bang take place? 13.7 Billion years ago!

2) What is a black hole? Black holes are areas of intense gravitational pressure.

3) Does the universe continue to expand? Yes.

4) Was there really a big bang? We don't know.

5) What light elements seem to support the Big Bang Theory? Hydrogen and helium.

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? A leap year is a year that has an extra day in it.

3) List three other types of calendars used and how they set up their calendar (ex. Lunar).

4) What is BC? BC stands for 'Before Christ'.

5) What is BCE? BCE stand for 'Before Common Era'

6) What is AD? AD stands for 'After Death'.

7) What is CE? CE stands for 'common era.'

8) What is MYA? MYA stands for 'Million Years Ago'

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?

15) What are time zones?

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?

18) What is Daylight Saving Time? Do we use this in Saskatchewan?

19) Is there a year zero?

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

21) What is linear time?

22) What is cyclical time?