
Loodusõpetus 7.klass
Authored by Marju Rannamaa
Physics, Chemistry, Biology
7th - 8th Grade
Used 54+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuidas nimetatakse teadusharu, mis uurib liikumist looduses?
Keemia
Bioloogia
Füüsika
Geograafia
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millist kahte keemilist elementi leidub Universumis kõige rohkem?
Raud ja tina
Hapnik ja lämmastik
Vesinik ja heelium
Süsinik ja kloor
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kus leidub süsinikku?
Kõikides elusorganismides (taimed ja looomad).
Kivides
Kosmoses
Merevees
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milliseid keemilisi elemente on inimeses kõige rohkem?
Raud, väävel, hapnik, lämmastik
Hapnik, süsinik, vesinik, lämmastik
Naatrium, kaalium, vask, lämmastik
Vesinik, liitium, kaalium, lämmastik
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milleks on vaja hapnikku?
Hingamiseks
Põlemiseks
Vee tekkeks
Kõigiks nendeks kolmeks (hingamine, põlemine, vee teke)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millest koosneb osoon?
Kolmest hapniku aatomist
Kahest lämmastiku aatomist
Rauast
Kuuest väävli aatomist
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milleks on osoon vajalik?
Hingamiseks
Põlemiseks
Kaitseb Maad ultraviolett kiirguse eest
Annab soojust
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