2.DBH. Proba Diagnostikoa - (1) Jarduera zientifikoa
Quiz
•
Chemistry
•
6th - 8th Grade
•
Practice Problem
•
Medium
David Martinez
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17 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ORDENATU metodo zientifikoaren pausoak:
ESPERIMENTAZIOA (A)
ARGITARATZEA (B)
HIPOTESIA (C)
BEHAKETA (D)
ONDORIOAK (E)
A-D-C-B-E
D-C-B-A-E
D-C-A-E-B
D-C-E-A-B
Answer explanation
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Metodo zientifikoa erabiliz, hipotesi bat baieztatzeko edo baztertzeko...
Hipotesia aldizkari zientifiko batean argitaratzea beharrezkoa da.
Entzun behar da adituek zer iritzi duten gaiari buruz.
Wikipedian bilatu behar da erantzuna.
Egin behar dira esperimentu erabakigarriak, gero beste pertsona batzuek errepikatu ahal izango dituztenak.
Answer explanation
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nazioarteko Unitate Sistema erabilita, 1 nm da 1 · 10-9 m.
Nola idatziko zenuke zenbaki hori NOTAZIO HAMARTARRA erabiliz?
0,000 000 000 1 m
100 000 000 m
0,000 000 01 m
0,000 000 001 m
Answer explanation
1 nm da 1 · 10-9 m
0,000 000 001 m
Koma eta gero 9 zifra daude!
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gripearen birusak 0,000 000 085 m-ko diametroa du.
Nola idatziko zenuke zenbaki hori NOTAZIO ZIENTIFIKOA erabiliz?
8,5 · 10-9 m
85 · 10-8 m
8,5 · 10-8 m
8,5 · 107 m
Answer explanation
0,000 000 085 m = 8,5 · 10-8 m
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Martera iristeko honako denbora hau behar izan zuen Mars Climate Orbiterek: 2,33 · 107 s.
Notazio hamartarra erabiliz, honela idatziko genuke:
23 300 000 s
2 330 000 000 s
0,233 · 108 s
20 000 033 s
Answer explanation
2,33 · 107 s = 23 300 000 s
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nola adierazten da 0,0045 mg/L notazio zientifikoarekin?
45 · 10-4 g/L
4,5 · 10-3 mg/L
0,45 · 10-2 g/L
45 mg/L
Answer explanation
0,0045 mg/L = 4,5 · 10-3 mg/L
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Lurretik Eguzkira 150.000.000.000 m daude, gutxi gorabehera.
Idazkera zientifikoa erabiliz, nola idazten da distantzia hori?
1,5 · 10-11 km
1,5 · 10-11 m
1,5 · 1011 km
1,5 · 1011 m
Answer explanation
KONTUZ UNITATEEKIN!
150.000.000.000 m = 1,5 · 1011 m
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