On Tuesday October 23rd we did our chemistry reactions. The reactions we did included:
Mentos in Diet Coke – it fizzed and sprayed way up in the air
Lotsa FIZZ candy in water (tartaric acid and sodium bicarbonate) – it fizzed once the powder mixed with water/salivaMelted potassium chlorate and gummy bear (you can see this reaction here: http://youtu.be/5gDCSwTV1Sg)
Homemade fizz powder (citric acid, sodium bicarbonate) in water – it fizzed
Magnesium solid (ribbon) in hydrochloric acid – it bubbled and created a gas
Cold packs (ammonium nitrate and water)
Burning of steel wool using a 9V battery
Burning money (soaking it in rubbing alcohol and water so the money doesn’t actually burn – the reaction is the rubbing alcohol burning)
Thank you to Cally for her awsesome photography during class!
Don’t forget that your final task for this unit will include describing each of these reactions. Are they chemical or physical reactions? If they are chemical, you will describe the compounds involved (are they ionic, molecular, acids), write the word equation, write and balance the chemical equation and tell what type of reaction it is.
STUDENTS AND READERS OF THIS BLOG:
Please comment to this post describing which reactions you think may be a physical reaction? Chemical reaction? Why? You don’t have to do this for all the reactions, just one or two is great.
And its time to start our chemistry unit. Yeeeaaahhhh.
Today (Monday) we are doing a quick review of essential concepts from Grade 9. Tuesday is CANDY REACTION day. We will be working through about 8 different reaction demonstrations. We will observe and document each. Throughout our entire chemistry unit we will be looking at the big ideas that will help us figure out a few things about each reaction. Those things include whether it is a physical or chemical reaction, the word equation, balanced chemical reactions, type of compounds (ionic, molecular, acid) and type of reactions. For your final unit task you will come back and look at the reactions we observe tomorrow.
Throughout the unit we will look at the “big ideas” or concepts in turn. For each concept there will be a variety of stations or activities. You will have the freedom to spend more time on those things that you need extra practice on. For those concepts you already understand or know, you can move through it quickly.
You will find the following information or resources for EACH TOPIC on D2L (our online classroom):
- a handout or word document that outlines the topic and station activities (including labs)
- an introduction or overview video
- written content (like a textbook with images and video included) ** this can be printed if you want at lunch in the library
- pencasts (video tutorials) that I’ve created to go over examples
- extra practice package for those students who would like more practice ** this can be printed if you want at lunch in the library
- an extension activity (in the handout for the topic) to further your thinking around the concept
As we work through the topics you will be completing “mini-tasks” or responses for feedback. I will put all feedback into your Evernote folders, so check often.
We will have access to the iPads and other assorted devices I’ve collected, as per usual. This will allow you access to online materials and to research questions as needed. However, if you wish to reduce waiting time, or wish to do more of your work online, you should bring in your own device to use.