Safety Signs and Symbols worksheet with various hazard signs and matching vocabulary for educational use.

Task: Label the safety signs and symbols with the expressions provided in the box.

#### Step-by-Step Solution:

1. Image 1: A red circle with a slash through a cigarette.
- Description: This sign indicates that smoking is prohibited.
- Label: No smoking

2. Image 2: A red fire extinguisher.
- Description: This sign indicates the presence of a fire extinguisher for emergencies.
- Label: Fire extinguisher

3. Image 3: A yellow triangle with a flame inside.
- Description: This sign warns of flammable materials.
- Label: Flammable material

4. Image 4: A red square with headphones and text "HIGH NOISE AREA."
- Description: This sign indicates a high noise area where ear protection is required.
- Label: Ear protection must be worn

5. Image 5: A red square with a person slipping or falling.
- Description: This sign warns to watch your step to avoid slipping or tripping.
- Label: Watch your step

6. Image 6: A blue circle with a face wearing goggles.
- Description: This sign indicates that eye protection must be worn.
- Label: Eye protection must be worn

7. Image 7: A yellow sign with "HARD HAT AREA" and an image of a hard hat.
- Description: This sign indicates that safety helmets must be worn in the area.
- Label: Safety helmets must be worn

8. Image 8: A red trefoil (three-leafed symbol) representing radioactivity.
- Description: This sign warns of radioactive material.
- Label: Radioactive material

9. Image 9: A red circle with a hand and text "NOTICE Authorized Personnel Only."
- Description: This sign indicates restricted access, allowing only authorized personnel.
- Label: No unauthorized access

10. Image 10: A skull and crossbones symbol.
- Description: This sign indicates danger, often associated with toxic or hazardous materials.
- Label: Toxic material

11. Image 11: A green sign showing a person lifting something safely.
- Description: This sign provides instructions on how to lift objects safely.
- Label: Safe lifting instructions

12. Image 12: A yellow caution sign with a hand and text "Corrosive Avoid Contact."
- Description: This sign warns of corrosive materials that should not be touched.
- Label: Corrosive material

Final Answer:

```
1. No smoking
2. Fire extinguisher
3. Flammable material
4. Ear protection must be worn
5. Watch your step
6. Eye protection must be worn
7. Safety helmets must be worn
8. Radioactive material
9. No unauthorized access
10. Toxic material
11. Safe lifting instructions
12. Corrosive material
```

This completes the labeling of the safety signs and symbols. Each sign has been matched with its appropriate description based on its visual representation and meaning.