Question

snc 1w
snc 1w
safety in the science lab
use the graphic provided by the teacher to answer the following questions:

1. list 3 unsafe activities shown in the illustration and explain why each is unsafe.
2. list 3 correct procedures depicted in the illustration.
3. what should bob do after the accident?
4. what should sue have done to avoid an accident?
5. what are three things shown in the lab that should not be there?
6. compare joe and carls lab techniques. who is doing it the correct way?
7. what will happen to ray and tim when the teacher catches them?
8. list three items in the illustration that are there for the safety of the students in the lab
9. what is betty doing wrong?

Explanation:

1. For unsafe activities: Identify actions that break lab safety rules, then explain risks.
2. For correct procedures: Spot actions that follow standard lab safety guidelines.
3. For Bob's next steps: Follow standard accident response protocols for labs.
4. For Sue's prevention: Address the unsafe action she took.
5. For forbidden items: Identify non-lab, distracting, or hazardous objects.
6. For Joe vs Carl: Compare their lab work postures and safety practices.
7. For Ray and Tim: Outline typical teacher responses to unsafe lab behavior.
8. For safety items: Recognize standard lab safety equipment.
9. For Betty's mistake: Identify her action that violates lab safety.

Answer:

1.

• Unsafe Activity 1: Jim is drinking from an unlabeled container. This is unsafe because the container could hold toxic/irritating lab chemicals, leading to poisoning or injury.
• Unsafe Activity 2: Ray and Tim are roughhousing/putting feet on desks. This is unsafe because it can knock over lab equipment, break glassware, or cause spills of hazardous materials.
• Unsafe Activity 3: Bob has broken glassware and a spilled substance near him without proper PPE. This is unsafe because broken glass can cut skin, and the spilled substance may be corrosive or toxic.

2.

• Correct Procedure 1: Carl is wearing safety goggles while working at his lab station.
• Correct Procedure 2: The first aid kit is accessible near the lab area.
• Correct Procedure 3: Carl is sitting properly at his desk, focused on his work.

1. Bob should immediately alert the teacher, avoid touching the broken glass or spilled substance with bare hands, and follow the teacher's instructions for cleaning up the spill and disposing of broken glass safely.
2. Sue should have tied back her long hair to prevent it from catching fire, getting caught in equipment, or coming into contact with chemicals.

5.

• A stuffed toy (on Joe's desk)
• A drink cup (near Bob)
• Personal food items (implied by Jim drinking a non-lab beverage)

1. Carl is doing it the correct way. Carl is wearing safety goggles, sitting properly, and focused on his work. Joe has messy hair, no safety goggles, and a toy on his desk, which are all unsafe practices.
2. The teacher will likely stop their unsafe behavior, give them a warning about lab safety rules, and may require them to complete a lab safety review or assignment to reinforce proper practices.

8.

• Safety goggles (worn by Carl)
• First aid kit (mounted on the wall)
• Safety shower (labeled on the wall in the background)

1. Betty is putting a lab item (her pencil) in her mouth, which is unsafe because lab surfaces/items may have chemical residue that can cause illness or poisoning.