Project #20142 - Lab: History of Life Lab

We divide fossils into body fossils and trace fossils (also known as ichnofossils). A body fossil is a part of (or in some cases the entire) body of a creature. In some rare cases, the organic material of the creature remains in the fossil, but more often we get casts and molds that reveal the external and internal structure of the organism, rather than original material. Trace fossils do not reveal much information about the anatomy of the creatures that made them, but instead offer glimpses of the activity and physiology of the creature.
There are several types of body fossils; the mode of preservation of the organism’s original material is what differentiates them. Compressions form when the overlying sediment "compresses" the organism into a flat layer, which results in some of the original organic material of the creature being preserved, often as thin carbonaceous films. However, many times the organic material is further decayed, leaving only a "part and counterpart" detailing the external form of the creature. Casts and molds are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with other sediment (cast). Casts can be external or internal; the latter is known as steinkerns. When organic matter literally "turns to stone" when it is replaced with silica, that is called petrifaction. Petrified wood forms by this process.
Objectives:
1. Learn about the different types of fossils 2. Select and study a group of organisms in depth 3. Prepare a virtual poster session to be shared with your classmates detailing the biology and evolution of the group of fossils you have chosen. An alternate to this activity is to prepare a poster of a particular period or epoch of geologic time.
Time Requirements:
This lab should take 4-5 hours to complete.
Recording Your Observations:
Download the lab report for this lab . rtf or pdf
Procedures:
1. Visit http://www.ucmp.berkeley.edu/paleo/fossils/, and read about the types of fossils and fossil preservation.
2. Visit a number of websites (a few starters are listed below) that deal with the topic of the
The Scientific Method:
As you go through the lab, the scientific method will be your guide to the process. Click here for more information about the scientific method.
Page 1 of 2section1
12/17/2013http://curriculum.kcdistancelearning.com/courses/BIOx -HS -A09/b/unit6/u6_lab/HistoryO ...
history of life on earth.  Gather (and cite!) information and images to allow you to prepare a virtual poster session.
In your poster session presentation you will need to detail the classification of the group of creatures whose fossil history you are detailing. Include the time of first occurrence, time of maximum diversity, and whether or not the group is extinct or extant. 
Example sites:
Tour of geologic time, University of California, Berkeley Museum of Paleontology PALAEOS: The Trace of Life on Earth
*Some search keywords: geologic time, fossil history, fossil record
Lab: History of Life Lab, 100 points
Submit your completed lab to the Lab: History of Life assignment link for grading. For information on how this assignment will be graded, review the grading rubric included on the Lab Report: History of Lab: History of Life Lab

Subject Science
Due By (Pacific Time) 12/19/2013 12:00 am
Report DMCA
TutorRating
pallavi

Chat Now!

out of 1971 reviews
More..
amosmm

Chat Now!

out of 766 reviews
More..
PhyzKyd

Chat Now!

out of 1164 reviews
More..
rajdeep77

Chat Now!

out of 721 reviews
More..
sctys

Chat Now!

out of 1600 reviews
More..
sharadgreen

Chat Now!

out of 770 reviews
More..
topnotcher

Chat Now!

out of 766 reviews
More..
XXXIAO

Chat Now!

out of 680 reviews
More..
All Rights Reserved. Copyright by AceMyHW.com - Copyright Policy