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T E A C H E R N O T E S

THE CONSERVATION OF MASS - SC.8.N.3.2

PROBLEM STATEMENT:
What affect does a closed container have on the conservation of mass?

HYPOTHESIS: (predictions will vary)

BACKGROUND INFORMATION:
The Law of Conservation of Mass was established in 1789 by French Chemist
Antoine Lavoisier and states that mass is neither created nor destroyed in any
ordinary chemical reaction. Further interpreted, it means that in a chemical
reaction, the mass of the products equals the mass of the reactants. Therefore, it
may be assumed that mass is better contained and measurable if it is contained
within a measureable area.

VARIABLES:

Control Group Closed Container

Independent Variable Open Container

Dependent Variable The mass of the product
The same….
Constant (Controlled) volume of vinegar, amount of baking soda,
Variables amount and type of tissue, etc….

DATA COLLECTION/OBSERVATIONS: (data collection will vary)

GRAPHS: (answers will be based on the data collected)

RESULTS: (answers will vary)

CONCLUSION: (answers will vary)

APPLICATION: (answers will vary)

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