This video tutorial covers essential lab safety protocols and introduces various lab equipment. It emphasizes the importance of following instructions, knowing the location of safety equipment, and dressing appropriately for lab work. The tutorial also provides guidance on handling chemicals and equipment safely, and it concludes with an overview of common lab tools and their functions.

What should you do first when you enter the lab?

• Begin the experiment immediately.

• Sit down and wait for instructions.

• Start touching the equipment.

• Look for the safety equipment.

Where is the eyewash station located?

• Up near the teacher's desk.

• Near the door.

• By the American flag.

• In the hallway.

What should you use to put out a fire on a person?

• Water.

• Fire blanket.

• Fire extinguisher.

• Sand.

What type of shoes should you wear in the lab?

• Sandals.

• Open-toed shoes.

• High heels.

• Closed-toed shoes like tennis shoes.

What should you do if you spill a chemical?

• Pour water on it.

• Ask the teacher for instructions.

• Ignore it.

• Clean it up with a paper towel immediately.

Why should you never put hot glass in cool water?

• It will clean the glass.

• It can cause the glass to shatter.

• It will cool the glass too quickly.

• It will make the glass dirty.

Tags

NGSS.HS-PS3-4

What is a beaker primarily used for?

• Holding and mixing liquids.

• Measuring accurate volumes.

• Heating solids only.

• Storing chemicals permanently.

How should you read the volume in a graduated cylinder?

• From the top of the meniscus.

• From the top of the liquid.

• From the side of the cylinder.

• From the bottom of the meniscus.

What is the purpose of a mortar and pestle?

• Transferring liquids.

• Heating liquids.

• Measuring volume.

• Crushing and grinding solids into a powder.

What should you use to transfer small amounts of liquid?

• Beaker tongs.

• Pipette.

• Forceps.

• Scoopula.