WHMIS Worksheet for matching chemical hazard pictograms to their names and hazards.

Let's solve this WHMIS (Workplace Hazardous Materials Information System) Worksheet step by step.

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🔍 Objective:

Match each pictogram to its:
1. Name
2. Hazard it represents
3. Example of a common chemical in that category

We are given:
- A list of pictogram names
- A list of common hazards
- 8 pictograms to identify and describe

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✔ Step 1: Identify Each Pictogram

Let’s go row by row and match the symbols.

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#### Row 1

| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| 🟨 Biohazard symbol (three interlocking circles) | Biohazardous | Infectious | Human blood, medical waste, cultures of pathogens |

> 💡 This symbol indicates biological substances that can cause disease or infection.

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| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| 🔥 Flame over circle (flame above a circle) | Flame over Circle | Oxidizer | Hydrogen peroxide (concentrated), potassium permanganate |

> 💡 Oxidizers support combustion — they don’t burn themselves but make other materials burn more easily.

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#### Row 2

| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| ⚠️ Corrosion symbol (hand and metal being corroded) | Corrosion | Skin corrosion | Sulfuric acid, hydrochloric acid |

> 💡 Causes severe skin burns or eye damage.

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| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| 🔥 Flame (simple flame) | Flame | Flammable | Gasoline, ethanol, acetone |

> 💡 Indicates flammable liquids, solids, or gases that can ignite easily.

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#### Row 3

| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| ☣️ Skull and crossbones (white on red diamond) | Skull and Crossbones | Acute toxicity | Arsenic, cyanide compounds |

> 💡 Highly toxic if ingested, inhaled, or absorbed through skin.

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| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| 🧪 Exclamation mark | Exclamation Mark | Eye irritation / Skin irritation | Ammonia, isopropyl alcohol |

> 💡 Indicates less severe health hazards like skin/eye irritation, narcotic effects.

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#### Row 4

| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| 💣 Exploding bomb | Exploding Bomb | Explosive / Self-reactive | Nitroglycerin, TNT, ammonium nitrate |

> 💡 Can explode under certain conditions; may be self-reactive.

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| Pictogram | Name | Hazard | Example |
|----------|------|--------|---------|
| 🌍 Environment (fish and tree) | Environment | Aquatic toxicity / Hazardous to ozone layer | Chlorofluorocarbons (CFCs), pesticides like DDT |

> 💡 Harmful to aquatic life or depletes the ozone layer.

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✔ Final Answer Table:

| Pictogram | Information, example, etc. | Pictogram | Information, example, etc. |
|----------|-----------------------------|----------|-----------------------------|
|  | Biohazardous – Infectious substances. Example: Human blood, viruses. |  | Flame over Circle – Oxidizer. Example: Hydrogen peroxide (30%). |
|  | Corrosion – Causes skin corrosion. Example: Sulfuric acid. |  | Flame – Flammable material. Example: Gasoline. |
|  | Skull and Crossbones – Acute toxicity. Example: Cyanide. |  | Exclamation Mark – Irritant or health hazard. Example: Ammonia. |
|  | Exploding Bomb – Explosive or self-reactive. Example: Nitroglycerin. |  | Environment – Aquatic toxicity or ozone depletion. Example: CFCs. |

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🔎 Summary Chart (Matching):

| Pictogram Names | Common Hazards Represented | Example Chemical |
|------------------|----------------------------|-------------------|
| Biohazardous | Infectious | Blood, bacteria |
| Flame over Circle | Oxidizer | Hydrogen peroxide |
| Corrosion | Skin corrosion | Sulfuric acid |
| Flame | Flammable | Gasoline |
| Skull and Crossbones | Acute toxicity | Cyanide |
| Exclamation Mark | Irritation (skin/eye) | Ammonia |
| Exploding Bomb | Explosive / Self-reactive | Nitroglycerin |
| Environment | Aquatic toxicity / Ozone depletion | CFCs |

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✔ Tips for Completing the Worksheet:

- Use the GHS (Globally Harmonized System) pictograms as reference.
- Match based on shape and symbol meaning.
- Always include real-world examples to reinforce learning.

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✔ Final Note:
This worksheet helps workers recognize hazardous chemicals and understand their risks. Proper labeling using WHMIS ensures safety in workplaces handling chemicals.

Let me know if you'd like a printable version or a filled-in PDF!