Assignment : Do the study questions, put your name on it and photograph it. Answer key is here.
5 marks for finishing the questions with your name clearly on the paper
criteria:
5 marks, you write your name on every sheet and you answered all questions, including the multiple choice.
4- you completed almost everything. your name is not on every sheet
0-3 - it is a good start, but incomplete
KITCHEN EXPERIMENTS: 10 marks
For the other ways to increase a rate of reaction, I would like you to try the following home kitchen experiments and write your observations on a separate piece of paper. Your maple leaf must be on your paper:
1. TEATIME: put a tea bag in cold water and another tea bag of the same type in boiling water. Wait 10 minutes. Observe the diffusion that takes place. Place your maple leaf beside the boiling water and cold water and take a picture. Write your observations. Explain how this relates to the rates of reaction. If you don't have tea, you may use instant coffee or hot chocolate powder.
2. VINEGAR AND BAKING SODA: put some full strength vinegar in a glass ( A )and a teaspoon of vinegar in another glass (B) . Fill glass B with WATER so it has the same amount of liquid as glass A. Glass A has full strength vinegar, glass B has dilute vinegar.
Now add a tablespoon of baking soda to glass B and glass A. Observe what happens. Take a picture and make sure your maple leaf is in the pic. Explain how this relates to the rates of reaction.
3. WHAT MELTS FASTER, A BIG ICE CUBE, or CRUSHED ICE that is the same volume as your big ICE CUBE. You can also do this experiment with a BIG SCOOP OF ICE CREAM vs three smaller scoops of the same volume....this means you might be eating melted ice cream...Take a picture and make sure your maple leaf is in the pic. Explain how this relates to the rates of reaction.
8-10 marks for photographing your experiment with your maple leaf in the picture AND for clearly explaining how it relates to rates of reaction.
5-7 marks for photographing your experiment with your maple leaf in the picture AND for explaining how it relates to rates of reaction
0-4 marks. you included a photo but it doesn't have your maple leaf in either the photo or the explanation
