La carta è una materia prima?
I MATERIALI: LA CARTA

Quiz
•
Instructional Technology
•
2nd Grade - Professional Development
•
Hard
rosa costanzo
Used 1+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
VERO
FALSO
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
La carta si ricava
dalla lignina del legno
dalla cellulosa del legno
dalle fibre di stoffa
dalle cellule della corteccia
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
I chips sono
cilindri per produrre la carta
sostanze incrostanti presenti nella pastalegno
pezzetti di legno da cui si ricava la cellulosa
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nei paesi poveri di foreste come l’Italia, il
legno per la carta è ricavato in prevalenza
da
tronchi d’albero grossi e regolari
legnami di recupero a basso costo
alberi a crescita rapida, tronchi piccoli, grossi rami
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nella macchina continua, la carta viene resa
liscia
mediante cilindri sgocciolatori che serrano le fibre
con cilindri aspiranti disposti a coppie
per mezzo di rulli di metallo sovrapposti
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale tra queste sono proprietà della carta? (le risposte corrette sono più di una)
liscia
stampabile
piegabile
patinata
morbida
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Per la carta dei quaderno si usa
pastalegno
pasta di cellulosa
pasta di cartaccia
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