Introduction
Welcome to a lesson in chemistry technology! What is that you may ask?
It is a science field that explores methods, processes, and procedures how to reuse compounds to make new substances and new materials. Chemistry technicians are the developers and testers, they are scientists.
Task
Your task today will be simple. You need to watch a video about cellulose which is in the next section called ''Process'' where you'll find the material. Also, there you will find an informative website about cellulose, which you should check out too to understand this subject better.
And then you will have to give an answer to the questions. You should probably take notes to understand everything better and remember what and why.
Process
1. Your video material is here.
Watch carefully and try to understand the process and reasons. Also, this material will be useful to get to know cellulose better and answer the questions.
2. Take this test and check your knowledge! If you need, you can rewatch the video.
| Number | Question | Answers |
| 1. | Cellulose is a | A lipid B polymer C tree |
| 2. | It is extracted from the wood | A fiber B cell C water |
| 3. | ... quantity - higher purity | A Bigger B Tougher C Smaller |
| 4. | Family of trees used in the video | A Eucalyptus B Pineapple C Oak |
| 5. | Which fibers should be blended? | A Big and small B Long and short C Not mentioned |
| 6. | What do they do to lugs after they get them to the factory? | A Wash B Chip C Cook |
| 7. | Digester machine | A makes fibers last B cooks C separates lignin from the fibers |
| 8. | Lignin | A binds the cells B makes fiber C is a tree |
| 9. | What is created after all of this work? | A paper B specialized cellulose C fiber |
| 10. | What can not be created from the end material? | A Clothes B Tablet fillers C Clay |
Evaluation
| Number | Question | Answers |
| 1. | Cellulose is a | A lipid B polymer C tree |
| 2. | It is extracted from the wood | A fiber B cell C water |
| 3. | ... quantity - higher purity | A Bigger B Tougher C Smaller |
| 4. | Family of trees used in the video | A Eucalyptus B Pineapple C Oak |
| 5. | Which fibers should be blended? | A Big and small B Long and short C Not mentioned |
| 6. | What do they do to lugs after they get them to the factory? | A Wash B Chip C Cook |
| 7. | Digester machine | A makes fibers last B cooks C separates lignin from the fibers |
| 8. | Lignin | A binds the cells B makes fiber C is a tree |
| 9. | What is created after all of this work? | A paper B specialized cellulose C fiber |
| 10. | What can not be created from the end material? | A Clothes B Tablet fillers C Clay |
Check your answers and if you have a wrong answer - rewatch the video and move on.
Conclusion
So you have seen the material on how cellulose is made and you have read the material about cellulose. You took a test and I believe you passed it, so congratulations - you know how cellulose is made and you know where you can find it if you want to.
I want to remind you that you should save the trees and think how do you influence this culture of logging. Take care of trees, plant them. Good luck in future studies!
-Viktorija Mjasnikova, 12A