It's About Time

Bailey Linton

March 05, 2010

It’s about time, is the title for investigation. Did you know that geological time begins with 0? This is one thing we learned while studying in this investigation. We made a time line, 45 cm long. Each group had a time line, on paper. We measured and marked the time periods and eras. We measured the length of the time period or era by how many years old it was 1cm= 1 million years ago (mya). Some other thing we learned is that the sedimentary rocks are limestone, sandstone and shale, and the Precambrian Era is the longest era ever. It’s about time is what learned.