ELEMENTS   &   COMPOUNDS USED IN EVERYDAY LIVING - ASSESSMENT # 1

QUES. 1:  Which four elements (names and symbols) make up the majority of the substances in the biosphere and human life?

     ELEMENT INVENTORY:    Make the following Element Inventory Table:

Common substance;  Chemical name;  Element Name;  Symbol;  Element Count

Water		 - 	Hydrogen	H	1
			Oxygen	O	2
Air		oxygen & nitrogen	Nitrogen	N	3




QUES. 2:  Choose TWO of any of the elements except H, O, C.  Use the text book or a Science encyclopedia to find as much as possible of the following information.  Natural source of the element, products made with the element or uses of the element, any other interesting details.  Write a short report to summarize your findings.  Be prepared to share your findings with other classmates on an informal basis. 

CLASSIFICATION OF MATTER

     For this IN-CLASS ACTIVITY, you will need the completed Element Inventory.   

QUES. 3:   First write very brief definitions of the following terms.  These are found in the appropriate sections of the textbook or have been discussed in lecture.  Second, use the lists of compounds, elements, and ingredients lists to find the examples of the following terms. 

MATTER

THREE STATES OF MATTER

MIXTURE

SOLUTION

HOMOGENEOUS MIXTURE

HETEROGENEOUS MIXTURE

ELEMENT

ATOM

COMPOUND

MOLECULE (of a compound and of an element)

PURE SUBSTANCE (both an element and a compound)

PHYSICAL PROPERTIES

CHEMICAL PROPERTIES

PHYSICAL CHANGE

CHEMICAL CHANGE
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