ATOMIC THEORY
Lesson 5

 

PHYSICAL SCIENCES MATTER

LESSON 5.  Chemical Formulas

 Materials:

Polylab Molecules

worksheet

Objective:  Students explore more about chemical formulas.

 

Teacher Notes:

 

Recording how elements and compounds react is called a chemical equation.  However, it is important to really understand the formula of the different compounds that are used in the reaction.  This chapter looks in more detail at the development of the chemical formula and allows the students to create models to help them visualize the different compounds.

 

We will be highlighting hydrocarbons because they are important to our everyday life from plastics to gasoline. 

 

ANSWERS:

 

The models should have the correct amount of carbons and hydrogens.  Pictures in the text should serve as your guide.

 

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