ESSENTIAL QUESTION: What is density?
RELEVANCE: Can I determine the identify of an unknown substance by finding its density?
NGSSS: SC.912.P.8.2; MAFS.912.N-Q.1.1; LAFS.910.WHST.1
LEARNING OBJECTIVES: Students will be able to:
-measure the mass and volume of several different object.s
-calculate the density of objects by using their measured mass and volume.
-calculate percentage error.
BELL RINGER: Solve the density problem:
A solution has a volume of 75 mL. It has a mass of 158 g. What is it’s density? Could this substance be pure water? Why or why not?
VOCABULARY: matter, mass, volume, weight, density, percent error, physical properties, water displacement
HOME LEARNING: Work on Research Plan
Students completed the bell ringer on a sticky for posting in the room.
We then reviewed HL 4, the logic puzzle for density. By writing down all possible masses and volumes for each colored box, you can then go back through the list and eliminate those that don't fit the information. It takes thought, patience, and math!
Notebooks were returned. The rubrics should be taped into the back of the notebook, four pages prior to page A. I should have included that as a part of the reference information. Perhaps next year!
Those students who were given a chance to redo their notebook for a higher grade, be advised that the resubmission will be on the NEXT class!
We received our project research plan and began to compete it. The completed plan is not due until October 23. As a home learning assignment, look up the information for the background. Once you have that info, we can formulate a hypothesis. Your background MUST include complete references. This means, if you use a book, use the MLA style of writing the reference. If you get the information from the internet, first make sure it is a reputable site. Then, be sure to record the entire URL address AND the date the information was accessed.
We then completed the lab on density. We did not finish the CER, but will do so at the beginning of the next class.
