Which of the items are used for measuring the mass of a solid?
B. Florence flask
C. graduated cylinder
D. platform balance
Which of the following is NOT used for heating?
A. alcohol lamp
B. Bunsen burner
D. hot plate
Which of the following items is NOT used for measuring?
A. spring balance
B. petri dish
D. triple beam balance
Students are allowed to use the laboratory without supervision.
Teachers allow their pupils to experiment without the laboratory safety gear.
Why is it important to unplug equipment after use?
A. Electricity is energy that also need to be conserved.
B. Unplugging equipment helps in reducing accidents.
C. It is the responsibility of the student to organize his/her workplace after use.
D. All of the above.
Which among the following actions did NOT follow the rules in the laboratory?
A. Lyjan spilled a chemical on the floor and immediately called the attention of the teacher.
B. Lyjan did not touch anything inside the laboratory and waited for the teacher’s instructions.
C. Lyjan carefully poured the acid into the water before disposing it.
D. Lyjan disposed of a chemical straight into the sink.