Long hair must be secured to the back of your head.
What things do you need to wear before beginning any laboratory exercise?
Goggles
Safety apron or a lab coat
Gloves
All of these
What should you do if a glass breakage occurs?
Immediately contact your teacher.
Leave it where it is without telling anyone.
Run out of the classroom.
Touch it to see if it is safe.
What should you maintain in your lab work area?
A messy work space.
Lots of food and drink.
Chemicals spread all around you.
A clean and tidy work space.
What should you do if a flame from a burner leaps out of the burner toward you?
Touch it with your finger to turn off the fire.
Get out of the way and turn the gas off immediately.
Touch the flame to see how hot it is.
None of these.
Always point a test tube or bottle that is being heated towards you and others.
If you are heating a liquid, what should you NEVER do?
Heat the liquid in an open container.
Heat the liquid in a closed container.
Add boiling chips to the container.
All of these.
What should you NEVER do if you have heated a container?
Test its temperature.
Pick up the container with your hand.
Pick up the container with a clamp.
Never heat a chemical unless instructed to do so.
What should you NEVER do in the lab?
Run while holding a beaker with chemicals.
Play practical jokes on people.
Mess around with your friends.
