50+ High School Science worksheets for 11th Grade on Quizizz ... - Free Printable

Let's go through each question one by one and solve them with explanations.

---

1. Mrs. Fields conducts safety drills at school because she believes it is best to prepare for, respond to, and recover from unexpected situations. Which environmental safety process is she following?

Answer: C) Basic emergency response

Explanation:
Safety drills are designed to prepare individuals for emergencies such as fires, earthquakes, or medical incidents. These drills focus on preparation, response, and recovery, which are core components of basic emergency response. While fire safety (D) is a part of this, the broader concept that includes all types of unexpected situations is basic emergency response.

---

2. It is important to complete which action step when working with and handling liquids?

Answer: D) Read the label at least three times before using a liquid.

Explanation:
When handling chemicals or liquids in a health or laboratory setting, reading the label carefully is critical to ensure proper use, avoid contamination, and prevent accidents. Repeating the reading ensures accuracy and awareness of hazards, storage requirements, and handling procedures. This is a standard safety protocol.

- A is incorrect because mixing solutions should be done in appropriate containers, not necessarily the original ones.
- B is incorrect—mixing solutions before disposal isn’t safe or standard practice.
- C is not always safe—some chemicals must be stored in specific conditions, not just accessible cabinets.

So, D is the most accurate and safest choice.

---

3. What resource could an healthcare employee access to understand whether or not a chemical is dangerous?

Answer: C) Material Safety Data Sheet (MSDS)

Explanation:
The Material Safety Data Sheet (MSDS), now often called the Safety Data Sheet (SDS), provides detailed information about a chemical’s properties, hazards, handling, storage, exposure controls, and emergency procedures. It is the primary reference for determining if a chemical is dangerous and how to safely work with it.

- A (Poison control center): Useful in emergencies, but not a routine resource.
- B (Housekeeping department): Not responsible for chemical safety info.
- D (OSHA manual): Contains regulations but not specific chemical details.

Thus, C is correct.

---

4. Trash is burning and the fire gets out of control. Which fire extinguisher is most appropriate to use to control this fire?

Answer: D) Class A

Explanation:
Fire extinguishers are classified based on the type of fire:

- Class A: Ordinary combustibles like wood, paper, trash — this matches burning trash.
- Class B: Flammable liquids (e.g., gasoline).
- Class C: Electrical fires.
- Class D: Combustible metals.

Since trash is made of paper, cardboard, etc., it falls under Class A fires. So, a Class A extinguisher is appropriate.

---

5. Which action indicates a health care employee understands fire safety?

Answer: B) Placing “no smoking” signs near oxygen and other gases

Explanation:
Oxygen supports combustion and increases fire risk significantly. Smoking near oxygen tanks or gas lines is extremely dangerous and can lead to explosions or rapid fire spread. Therefore, placing "no smoking" signs near these areas is a key fire safety measure.

Let’s evaluate the others:
- A: Storing wheelchairs in hallways blocks exits — unsafe, not fire-safe.
- C: Disposing of waste in nearest bin may not follow protocols; could be unsafe if not properly handled.
- D: Running to find a fire extinguisher during a fire might be dangerous — better to evacuate first unless trained and safe.

So, B is the best indication of understanding fire safety.

---

✔ Final Answers:

1. C – Basic emergency response
2. D – Read the label at least three times before using a liquid
3. C – Material Safety Data Sheet (MSDS)
4. D – Class A
5. B – Placing “no smoking” signs near oxygen and other gases

Let me know if you’d like this formatted for printing or need further clarification!