time

the big bang theory assignment
1) the big bang theory happened about 13.7 billion years ago. 2) black holes are areas of intense gravitational pressure. 3) it continues to expand and cool to this day and we are in it. 4) experts however say that there was no explosion. 5) Hydrogen and Helium found in the observable universe are thought to support the Big Bang model of origins.

time keeps on slippin'
1) the gregorian callender. 2) a leap year is a year with one extra day. 3) lunar, solar, and lunisolar. 4) BC means before christ. 5) BCE means before common era. 6) AD means Anno Domini. 7) CE means common era. 8) a MYA is a year in modern geographics 9)