Exploring Lab Safety and Scientific Tools

What should you do with long hair before starting an experiment?

• Leave it as it is

• Tie it back

• Cover it with a hat

• Cut it short

What is the purpose of wearing goggles in the lab?

• To protect your eyes from burns, chemical spills, and flying objects

• To look stylish

• To see better

• To avoid bright lights

How long should you rinse your eye if a chemical splashes into it?

• 20 minutes

• 10 minutes

• 5 minutes

• 15 minutes

What should you do if a person is on fire in the lab?

• Blow on the fire

• Wrap them in a fire blanket and have them roll on the floor

• Use a fire extinguisher

• Throw water on them

Which type of waste includes blood, dead animals, and animal waste?

• Flammable waste

• Biological waste

• Radioactive waste

• Toxic waste

What should you never do when working with heat?

• Leave a heat source unattended

• Use mitts or tongs

• Label containers

• Wear protective clothing

What is the safer way to smell a chemical?

• Taste it

• Waft it

• Directly sniff it

• Ignore it

What should you do to electrical cords to prevent accidents?

• Keep them wet

• Keep them out of the way

• Cut them short

• Wrap them around equipment

What is a beaker used for in the lab?

• Stirring liquids

• Pouring and making rough measurements of fluids

• Heating substances

• Holding test tubes

What should you be careful of when using a microscope?

• Not to touch the lenses

• Not to use it in bright light

• Not to crush the slide when focusing on high power

• Not to spill chemicals on it