G7 Laboratory Practices

​Unit 7 Session 3

Laboratory Orientation​

Multiple Choice

Why is it important to conduct an orientation about laboratory safety and using the laboratory materials properly?

• for us to get A+ in Science

• for us to be safe in the laboratory

• for us to play in the laboratory

• for us to take good pictures for our social media

​Laboratory safety

This is our priority.

Aside from learning, we want to make sure that you are safe while doing the experiment.

​Proper Use of Laboratory Materials

Multiple Choice

Which of the following is the graduated cylinder?

The GRADUATED CYLINDER is an instrument used to measure the volume of liquid substances.

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ALWAYS TAKE NOTE:

Read the meniscus at eye level​

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Graduated cylinder

Multiple Choice

What is the volume of liquid in this graduated cylinder?

• 20 ml

• 25 ml

• 24 ml

• 3

Multiple Choice

What is the volume of liquid for this graduated cylinder?

• 20 ml

• 21 ml

• 22 ml

• 26 ml

Multiple Choice

Which of the following is a measuring spoon?

MEASURING SPOONS are used to measure the volume of

solid substances, generally those in powdered form

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ALWAYS TAKE NOTE: level the substance (not heaping,

rounded or scant!)​

Measuring spoon

What are the DOs and DONTs in the laboratory?​

​Safety Precautions

Multiple Choice

Which of the following is NOT a safety precaution?

• Place glasswares away from the edge of the worktable

• Play in the laboratory

• Stir carefully in dissolving substances

• Do not touch chemicals with bare hands

Multiple Choice

What should be the proper attire during laboratory activities?

Multiple Choice

What should you do if there is a spill in your work area?

• Use your hand to wipe it

• Use gloves and rag before wiping it

Multiple Choice

How should we dispose the salt and sugar solution?

• Throw it in the sink

• Throw outside the house

• Give to your pet

• Bring back to classroom