This assessment is only covering the Solubility and Mixtures part of our Properties of Matter Unit. First and foremost, check over all of the information that you have already done on your labs. Another GREAT way to study is to go over your ‘Scrapbook”. All of your learning from this unit should be in there. This was part of the purpose of this for REVIEW!
We will do a review in class on Monday March 24th in preparation for the test on Tuesday. See me earlier if you don’t understand something!
The vocabulary for this section is:
- saturated solution
- separation techniques – know what we have done in class: sieve, funnel and filter, chromatography, magnets, heating and evaporation
Other Sources to Review from:
Mixtures and Solutions Video – we watched this and took notes already (check them!)
Compounds and Mixtures – BBC interactive site
Solubility Video – you watching this, took notes and answered questions
Solubility Curves Video – watched after Solubility Labs
CK-12 Readings: (We read these at different times throughout this section0
- Mixtures and Solutions Reading and Video
- Homogeneous Mixtures
- Heterogeneous Mixtures
- Separating Mixtures
Separating Mixtures (shows different ways to do this) – BBC Bitesize
Today you will use M & M’s to design an experiment to see if temperature affects the amount of dissolving of the sugar coating of an M&M.
You will be able to identify and control variables to design an experiment to see whether the temperature of a solvent affects the speed at which a solute dissolves. You will be able to explain, on the molecular level, why increasing temperature increases the rate of dissolving.
Here are the solubility and temperature lab sheets that you will need. I am providing you with copies to use and write on throughout the lab and for the follow-up questions.
Extension: The attached reading gives you further background and information about solubility. Solubility extension reading
Work on the following items at your desk:
1) Compounds and Mixtures – interactive site – take notes in your science notebook while you watch/interact.
2) Solubility Reading and Video
- Read and take notes on the Solubility Reading from this link: Solubility Reading and Questions
- Watch the video: Solubility video You can watch up to 7:00 minutes of the video and then stop. If you want extension, watch the whole video.
- Answer questions 1, 2, and 3 in the Practice section from your reading. Put your answers in your notebook under your notes from the reading. If you watched the whole video, then answer all 5 questions for extension.
3) Update Scrapbook – Start working on your Solubility section of your scrapbook. Look at the notes from Mixtures and Solutions Lab. Remember to describe the lab, explain the learning from the lab (refer to notes) and include a photo for this entry into your scrapbook.