Periods 1: Take notes (shown below) 
Periods 2 and 4 : Take notes (shown below) and answer Analysis Questions (shown below):
Period 6 and 7:  Answer Analysis Questions (shown below):

Notes: 

Date: Mar. 7-8, 2017
Topic: Elements & the Periodic Table -
Obj: TSW:
·       use the Stopping to Think strategy to improve comprehension as they read about how:
·                   compounds contain only one type of molecule;
·                   molecules are made up of atoms;
·                   chemical formulas show which elements make up compounds;
·                   the PTE (Periodic Table of Elements) is organized. 

NOTES: 1.   Compounds have different properties than the elements that made them.
2.   Compounds are combinations of atoms, while elements are all made of a single type of atoms. 

Vocab (write words in science notebook; AND write words & definitions in vocab section)
o        Atom- the smallest particle of an element; each element is made up only of atoms that are unique to that element. Atoms are the building blocks of all matter.
o        Atomic mass - the mass of the smallest particle of the element.
o        Chemical formula - shorthand notation to show elements, compounds, and how they react with each other. Ex: H = Hydrogen Cl = Chlorine, O = Oxygen. A compound is identified by its combination and proportion of elements. Ex: H₂O, CO₂.
o        Chemical Symbol - each element has an abbreviation, with only 1 capital letter & possibly a lower case letter. Ex: C     H    O    N    S    Cl = Cl    Cu    Fe   Na    Si
o        Compound - chemical combinations of the elements.
o        Element - substance that can not be broken down into simpler substances by heating it or causing it to react with other chemicals. An element is made up of many atoms, all of the same type.
o        Family (of elements) - group of elements in a column of the PTE based on similar chemical properties. 

o        Metal- category of elements with shiny surface, good conductivity, and flexibility (can be melted, fused, hammered into sheets or drawn into wires).
o        Molecule-The smallest part of a compound that has the properties of that compound. Molecules are atoms combined in a certain ratio.
o        Periodic Table of the Elements (PTE)- arrangement of elements into a table based on their properties.


 Analysis Questions (or "Act. 16 AQs"):
1.  Make a copy of the table below in your science notebook.  Use the Periodic Table of Elements to find out which atoms make u a molecule for each of the substances listed. The first row has been completed for you.


2.  Sodium is a metallic solid, and chlorine is a poisonous yellow green gas.  Sodium and chlorine react to form sodium chloride, which we know as common table salt. 
   a.  Is table salt an element or a compound? Explain.
  
   b. Describe the physical properties of table salt.

    c. How do the properties of table salt compare with those of Sodium and chlorine?

3. Is seawater an element, compound or mixture? Explain your answer. 

 4. Explain the relationship between an atom and a molecule.