science F4

Which of the following is personal protective equipment (PPE) to put onto yourself ?

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Which of the following is personal protective equipment in the laboratory?

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Is it okay to sniff chemicals directly during experiment?

• YES

• NO

Eddy wants to carry out an experiment to study the effect of pH value on bacterial growth. Choose the PPE that he need to use while carrying out the experiment.

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Which of the following waste CANNOT directly disposed into the sink?

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What is this symbol for?

• Radioactive

• Corrosive substance

• Biohazard

• Flammable substance

What is the FIRST step if there is a chemical spillage in the school laboratory?

• Inform the teacher, laboratory assistant

• Cordon off the spillage site

• Collect the spillage

• Sweep or wash the spillage

Sand is suitable to putting off fire caused by______ compared to water.

• oil

• paper

• diesel

• textiles

Step 4 : Spray towards the flame in a ______ action

What is the most suitable type of fire extinguisher to be placed in an office?

• Foam

• Dry powder (ABC)

• Carbon dioxide