Earth science HW 5/3/2012

*Start on Analysis and conclusion for Rock ID lab ( final draft due tuesday 5/8/12)

Data Table/Observation Journal:

Create a data table with 9 rows, one for each rock sample.  Label the columns with sample #, the rock’s name, color, grain size, texture, other observable physical properties, and the feature that was most important to identifying the rock. Be sure to include drawings and description of each of the rock samples as part of your observation journal. 

Analysis:  Make a bar graph that illustrates which attribute was used most/most successful in identifying the samples. Answer these questions:

1) Were there any samples that you found difficult to classify?  Explain. 

 2)  Which attributes were least useful for classification?

3)  Classify each type of rock : igneous, sedimentary or metamorphic into its respective sub-groups and explain what allowed you to determine the sub group. 

 4)  Give two reasons we are studying rocks.

Conclusion:  Follow the lab  RUBRIC.

USe following guide as well as Appendix I on pg 920 of the Earth Science text.

		DISTINGUISHED (5)	SATISFACTORY  (4)	BORDERLINE  (3)	RE-DO  (2)	(0)
	TITLE MARGIN	Contains title, name, date, teacher, period and course	Missing one except title or name	Missing two except title or name	Missing more than two, title or no name
	ORDER	In logical order:  Question, Hypothesis, Test, Materials, Procedure, Data, Analysis & Conclusion	One category out of order	Two categories out of order	More than two categories out of order
	CLARITY	Lab report sections clearly labeled and separated.  Grammatically correct.	Sections clearly labeled but not separated.  Most grammar correct	Sections labeled but not separate.  Frequent errors in grammar	Sections not labeled nor separated.  Poor grammar
	QUESTION, HYPOTHESIS	Clear explanation of purpose. Variable(s) clearly identified in hypothesis	Gives a correct purpose with some framework.  Variables are identified	Declares a purpose that is correct.	Purpose is incorrect
	DATA	Carefully ruled tables are accurate labeled and complete	Ruled tables are accurate labeled and complete	Hastily ruled tables are accurate labeled and complete	Tables are not ruled or unlabeled or incomplete
	GRAPHS	Graphs are correct according to all good graphing rules	Graphs correct but misses no more than 1 label	Graphs correct but misses no more than 2 labels	Graph is un-readable/wrong type/untitled
	QUESTIONS	All questions are answered correctly.  And all questions are written out or obvious in the answer.	80% or more of the questions are answered correctly.  And all questions are written out or obvious in the answer.	No less than 70% of the questions are answered correctly.  And all questions are written out or obvious in the answer.	Less than 70% of the questions are answered correctly.  OR  only writing answers
	HYPOTHESIS	Restates the hypothesis, supports or refutes it and explains the role of the experiment in doing this	Restates the hypothesis and supports or refutes it	Supports or refutes the hypothesis without restating it	Does not address the hypothesis
	EVIDENCE	Uses data powerfully as evidence to support statements	Uses data to support statements	Refers to data as support	Does not use data to support arguments
	LOGIC	Conclusion logically follows from data and prior knowledge	Conclusion is logical but not well defended	Conclusion is logical but not defended	Conclusion is not logical
	ERROR	Identifies sources or error and explains the effect on results	Identifies sources of error	Suggests possibility of error	Does not address error
	CONTEXT	A next step is included that will further understanding of the original experiment and societal scientific implications	A next step is included that will further understanding of the original experiment	A next step is mentioned, but its purpose is unclear	A next step is mentioned

* Read and take cornell notes for Ch 21 on Geologic time, pgs. 552-569.