Zrak je zmes plinov.

NARAVOSLOVJE 9.A

Quiz
•
Chemistry, Biology, Science
•
8th - 9th Grade
•
Hard
Tanja Kodrič
Used 4+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
DA.
NE.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaj je potrebno za gorenje?
Samo kisik.
Kisik in toplota.
Kisik, toplota in gorivo.
Kisik, toplota, gorivo in voda.
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Katere trditve so pravilne?
Pri gorenju nastajata ogljikov dioksid in voda.
Pri popolnem gorenju nastaja ogljikov monoksid.
Ogljikov monoksid je nevaren, strupen plin.
Pri gorenju se sproščata svetloba in toplota.
Gasimo vedno tako, da odvzamemo gorivo.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Glavni onesnaževalci zraka so plini, ki nastajajo pri gorenju fosilnih goriv in pri izgorevanju v avtomobilskih motorjih.
DA.
NE.
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Katere trditve so pravilne?
Gozdovi so "tovarne kisika".
Rastline so porabniki hrane.
Rastline v procesu fotosinteze proizvajajo kisik.
Vsa živa bitja rabimo kisik v procesu dihanja.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Element je snov, ki jo kemijsko ne moremo spremeniti v bolj enostavno obliko.
DA.
NE.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vsak element ima svoj simbol, ki je izpeljan iz latinskega imena za simbol. Vse simbole elementov pišemo z eno črko.
DA.
NE.
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