We reviewed and corrected our reversible and irreversible changes activity from Friday. We began testing six different white powders using their reaction to water, vinegar, and iodine to help identify their characteristics.
We corrected the energy and chemical reactions assignment together in class. We then worked on identifying reversible and irreversible changes based on the experiments we have investigated over the last few classes.
We completed our conclusion and responses to the fire extinguisher lab. We began an investigation into the reaction of sugar and yeast in a mixture of water.
We viewed a film to review chemical and physical changes before correcting our assignment on this topic. Students then created a fire extinguisher by creating co2 gas and pouring this heavier-than-air gas onto a candle flame. We will review our lab write up for this experiment tomorrow in class.
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