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science F4 chapter 1

Authored by NG Moe

Science, Biology

4th Grade

Used 463+ times

science F4 chapter 1
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the uses of safety shower?

clean hands from dirt and harmful chemical substances

rinse and clean the eyes

clean and rinse the body

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not the places for storing and carrying activities involving harmful substances?

Laminar flow cabinet

Fume chamber

Heat chamber

biological safety cabinet

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the uses of laminar flow cabinet?

Prevents the stored objects form being contaminated by air

place to carry out activities that involve harmful substances that are volatile

protect the user from harmful pathogens

HEPA filter is installed to eliminate bacteria

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the function of fume chamber?

prevents stored objects from being contaminated by air

place to carry out activities that involve harmful substances that are volatile

a closed place to protect user from harmful pathogen

to clean the body or clothing of dangerous chemical substances

5.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

___ are worn to protect the hands from contaminated substances and dirt.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following can be disposed into the sink?

volatile substances

organic solvent

diluted acid

solid wastes

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following cannot disposed into the sink?

lead powder

salt solution

lime water

ethanoic acid

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