Chemistry: Balancing Formulas with Paper Molecules
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HW (Optional): BYOT (Bring Your Own Technology) with Stop Motion Studio app already installed.
CW: [1] Complete Balancing Chemical Reactions with A Ninja worksheet. [2] Complete Balancing Paper Molecules Poster.
DN: In a chemical reaction why does the number of atoms stay the same?
RESOURCES
LESSON OUTLINE
5min< Students complete the Do Now by answering in their notebooks.
15min Balancing Chemical Reactions with A Ninja worksheet. Students follow along with the video and complete the example problems, then finish the worksheet. Class goes over the questions together afterwards.
5min> Students working in pairs write incomplete formulas on the front and back of 11x17 paper (glue two 11 x 8.5 sheets together at the edge).
10-15min Students working in pairs balance the first formula (_CH3OH + _O2 —› _CO2 + _H2O) or the second formal (_C2H5OH + _O2 —› _CO2 + _H2O) together using the paper molecules. Glue molecules and correct the formula.
5min Collect materials. Clean up. Wrap up.