Introduction
In your chemistry course, you learn about cellulose production. Either we live in a house or an apartment building, we want to feel comfortable there. The thing that affects temperature in our homes is insulation. It keeps the house warmer in the winter and cooler in the summer.
So to understand how cellusose insulation is manufactured, watch a video where it is all explained and later answer some questions about it. Hopefully everything will be understandable and you won't have any problems while doing the task.
video -
Task
Watch the video about cellulose production and be ready to answer some questions about it!
Process
Now that you've watched the video answer these questions!
1.What is the cellulose fiber made from?
2. How big can be the weight loss after the smolder resistance test?
3. What is the machine called that the process begins with?
4.What does the machine do?
5. What happens to the staples, paper clips and every other piece of metal?
6. Where does the paper go next?
7. What does the factory mix the shredder paper with?
8. What does the fiber riser do?
9. What is the open flammability test?
10. How much insulation is blown into a bag?
Evaluation
Answers to the questions :
1. Recycled paper;
2. Less than 15%;
3. The primary mixer;
4. It separates the bunched up pieces, preparing them from shredding;
5. The machine's powerful magnet collects all of them;
6. Into the shredder;
7. Boric acid;
8. It shreds the paper into tiny pieces (4mm long) and mixes them with more boric acid;
9. The insulation is heated to 50 degrees Celsius and then ignited;
10. 11,3 kg of insulation.
If you answered to 8 out of 10 of these questions correctly, then you have understood this topic. Good job!
If not, watch the video again and see what you missed.
Conclusion
Good job! Now you have learned about the production of cellulose insulation.
I hope you enjoyed the video and it helped you to understand this topic of your learning course.
To understand other topics more easily, look for scientific video in youtube.com or the web in general. They help a lot more than reading theory from a book.
Good luck!
Credits
The information and the video was taken from www.youtube.com.
The exact video -
It can and is recommended to be used for learning purposes.
Teacher Page
Šajā "webquest" tiek mācīts par celulozes izolāciju, jo ir svarīgi saprast kā dzīvojamās ēkās tiek saglabāts siltums un tajā pat laikā ēka nepārkarst siltā saulē.
Pēc pievienotā video noskatīšanās, skolēnam ir jāatbild uz 10 jautājumiem par redzēto video. Atbilžu lapā ir rakstīts kādā gadījumā skolēns ir apguvis vielu un kad viņam video ir jānoskatās vēlreiz, lai saprastu visu vēl labāk.