Lesson
Activity
Exercise 3: Sediment Studies
In
the previous exercises, you have discovered how sediment layers are collected
to describe their composition and learn about the past. 
In
both activities, you used a straw to collect a core sample.
Real core samples are collected using huge drills aboard drilling ships. The picture on the left shows a drilling ship used by the Ocean Drilling Program. This ship collects cores nearly 10 meters long that may represent thousands of years of geologic history.
As you view the following pictures and pages, print out the journal pages to answer the questions as you follow along. You can also click on the pictures for a larger view.
