A description of two 'reactions' with household chemicals is outlined. For each students identify if the reaction is chemical or physical and provide an explanation for their answer.
For this practical task students complete a table of observations for the following substances: vinegar, baking soda, and vinegar and baking soda mixed together.
For this practical task students are assessed on their ability to observe changes that have occurred to 'popping' corn before and after it is heated. Drawings and written observations are required.