time

1) Around 13.7 billion years ago. 2) Black hole is areas of intense gravitational pressure. 3) Yes the universe continue to expand. 4) There are many Big Bang theory. 5) The light elements 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)Is a year the has an extra day. 3) List three other types of calendars used and how they set up their calendar (ex. Lunar). 4) BC stands for before Christ. 5) BCE means Before Common Era. 6) AD stands for the year of Christ’s birth. 7) CE It refers to Common Era. 8) MYA stand 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?