Quiz #1 (Lab Safety)

What should you do with long sleeves before starting an activity involving chemicals?

• Roll them up

• Cut them off

• Leave them as they are

• Wear short sleeves

Answer explanation

Rolling up long sleeves before working with chemicals helps prevent them from coming into contact with harmful substances, reducing the risk of contamination and injury. This is a safer practice than leaving them down or wearing short sleeves.

What must be worn if you are working with chemicals, a heat source, or sharp items?

• A hat

• Safety goggles

• Sandals

• Gloves

Answer explanation

Safety goggles must be worn when working with chemicals, heat sources, or sharp items to protect your eyes from potential hazards. They are essential for ensuring safety in these environments.

What should you do if your goggles are damaged or do not fit properly?

• Continue using them

• Tell your teacher

• Fix them yourself

• Ignore the issue

Answer explanation

If your goggles are damaged or do not fit properly, you should inform your teacher. This ensures safety and allows for proper replacement or adjustment, rather than risking injury by continuing to use faulty equipment.

Should you ever go into the chemical storage or preparation areas by yourself?

• Yes

• No

Answer explanation

You should never enter chemical storage or preparation areas without proper authorization and safety measures, as they may contain hazardous materials that pose serious risks to health and safety.

What must you do before participating in hands-on investigations?

• Take this quiz

• Pass this safety quiz with a score of B or better

• Listen to the teacher

• A lab report

Answer explanation

Before participating in hands-on investigations, a tear-off slip must be completed and signed. This slip typically serves as a consent form or acknowledgment of safety guidelines.

What should you not do while working in the laboratory?

• Follow safety procedures

• Conduct investigations with your teacher present

• Eat, drink, or chew gum

• Leave chemicals and equipment in the classroom

Answer explanation

Eating, drinking, or chewing gum in the laboratory can lead to contamination and exposure to hazardous substances. It's crucial to maintain a safe environment by avoiding these actions.

What should you do if you have cuts or broken skin while working in the lab?

• Leave them uncovered

• Cover them with a bandage

• Ignore them

• Stay home from school

Answer explanation

If you have cuts or broken skin while working in the lab, it is important to cover them with a waterproof bandage to prevent contamination and protect the wound. Leaving them uncovered or using a regular bandage is not sufficient.

What should you do if you encounter a chemical spill in the lab?

• Clean it up yourself

• Report it to your teacher immediately

• Ignore it

• Cover it with paper towels

Answer explanation

In the event of a chemical spill, the safest action is to report it to your teacher immediately. They are trained to handle such situations properly, ensuring everyone's safety. Cleaning it up yourself or ignoring it can lead to dangerous consequences.

How should you handle electrical items in the lab?

• With wet hands

• By pulling the plug by the wire

• With dry hands and by holding the plug

• By keeping them near water

Answer explanation

Electrical items should be handled with dry hands to prevent shock. Always hold the plug, not the wire, when unplugging to avoid damage and ensure safety.

How should you handle hot glass in the lab?

• Assume it is cold

• Hold your hand close to it without touching it

• Touch it directly

• Ignore it

Answer explanation

To safely handle hot glass, hold your hand close to it without touching. This allows you to gauge the temperature without risking burns, unlike assuming it's cold or touching it directly.