Learning Target – I can identify physical and chemical properties.
Unknowns lab started today. Yay for us! It’s taking longer than I planned, but we’ll get there. Tomorrow, all tests will have to be completed. It looks like, for most classes, getting your unknown to identify will be on Thursday along with your Chemical and Physical Changes and Properties Quiz. Please remember, this is only a quiz.
Homework is the following extended response.
Chemical and Physical change Extended Response
You are to answer the question below using the space provided at the bottom of the page. Please use the 10 steps to remember you were given before Christmas. You must identify and define your vocabulary as well as identify parts A and B of the question and answering both.
Susan places five drops of red food coloring into a beaker containing 50 ml of clear liquid in a lab exactly as the directions tell her to do. Still following instructions, she then adds 10 ml of a blue liquid to the beaker. Upon doing this, the liquid changes back to clear. Identify each of these steps as either a chemical or physical change. Justify your decisions.