1.2 Your science laboratory (science Kssm f1 DLP)

_{What is the hazard shown in this hazard sign?}

• Fireworks
• Broken Glass
• Explosive
• Corrosive

Where do you dispose broken glassware?

• Normal waste bin

• Chemical waste container

• Waste bin located on the student's bench

• Broken glassware bin

Why is it important to know the names and appearances of lab equipment before doing laboratory work?

• So you will score higher on the lab test

• So you will quickly obtain your lab supplied before lab lesson starts

• So you can follow the lab instructions clearly

• So you can make sure everything has been cleaned before beginning the lab procedure

What is the correct procedure to follow when smelling the odor of a chemical substance?

• Use your cupped hand, waft over the substance towards your nose which should be directly over the beaker.

• Place your nose directly and take a big whiff.

• Use your cupped hand, waft over the substance towards your nose which should be several centimetres away.

What is the correct procedure for students to follow if a chemical is spilled?

• Stand back and inform the teacher of the spill.

• Run madly around the lab.

• Splash large amounts of water onto the spill.

• Tell everyone that your friend did it, and then 'Oooh, they are in BIG trouble!'

Keeping the work area neat and clean is important because

• The teachers are neat-freak.

• I will not lose my chemicals and apparatus in the clutter.

• It keeps the room from looking messy.

• It helps to prevent accidents.

Safety goggles must be worn when

• heating is involved in the experiment

• using glassware apparatus

• using chemicals

• all of the above

If you get chemicals in your eyes, you should flush them with water for at least

• less than 15 minutes

• 10 to 15 minutes

• about 15 to 20 minutes

• more than 25 minutes

You should wash your hands after

• every lab practical lesson

• you accidentally spill chemical onto your hand

• there is no need for washing of hands

• both option 1 and 2

Ensuring the science lab is in clean and tidy state is the duty of

• my lab partner

• my seniors

• the teacher and the cleaners

• each and everyone of us