Introduction
By doing this WebQuest you will know exactly how paper is made. The video material shows and describes the process of paper production from wood and pulp. This topic is a part of a bigger topic - Chemical Technology - and by understanding it you will be one step closer to understanding the bigger topic, the way paper is made and how essential nature is to our society.
This is the link to the video you have to watch and do the tasks from:
Task
Your task is to watch the video and find answers to the questions on the next section of this WebQuest. You should put down your answers in Microsoft Word.
After completing the task correctly you should be able to describe and understand the paper production process in detail as it is difficult to answer all the questions by watching the video only once.
Process
Open this link (https://www.youtube.com/watch?v=9-Arybl6evc) and complete the task.
While or after watching the video answer these questions:
1) Which of these kinds of trees form stronger papers- deciduous or conifer trees?
2) Is it necessary to remove the bark?
3) Are off-cuts from industrial saw mills used in paper production?
4) Are wood chips cooked in an alkaline solution?
5) Is dissolving the lignin part of the production process?
6) Is the pulp wood-free?
7) What two adjectives are used to describe the pulp after it's been washed?
8) How would lignin make the paper look if it wasn't filtered out?
9) What two compounds are used in the bleaching process to protect the environment and to make it chlorine free?
10) How many litres of fresh water are needed to make one kilogram of paper?
Evaluation
After completing the task compare your answers to the answers below. Count the questions answered correctly.
The correct answers:
1) Conifer trees
2) Yes
3) Yes
4) No
5) Yes
6) Yes
7) Soft; fibrous
8) Yellow
9) Oxygen; peroxide
10) About 100
If you answered 8-10 questions correctly you've understood the topic. Congratulations!
If you answered 5-7 questions correctly it is recommended that you watch the video once more!
If you answered 0-4 questions correctly it is strongly recommended that you watch the video again and try to find the correct answers to all questions!
Conclusion
Congratulations! You have learned all about an important topic of Chemical Technologies!
In this WebQuest you learned that paper is produced from wood chips and later- pulp, and how it is done.
If you're interested in studying this further you can check out this website http://www.paperonline.org/paper-making/paper-production/pulping or read about it in your textbook.
Credits
The material was taken from youtube.com.