Lesson 05: Safety Symbols

⚠️ Safety Lab
Scanning
Lesson Goal: Learn to instantly recognize safety shapes and colors without needing to read the text.

The Universal Language

When you travel or work in a new factory, you might not speak the local language. However, there is one language that is universal all around the world: safety symbols. These signs are mandatory in workplaces to protect people from serious hazards.

Instead of reading long warnings, you must use cognitive scanning to quickly recognize the shape and color of a sign. For example, a yellow triangle always means caution or warning, like when a liquid is flammable or toxic.

Colors are just as important as shapes. A red circle with a line through it means an action is completely prohibited. A solid blue circle means you must wear or do something (like washing your hands). Finally, a green square always shows you a safe condition, like where to find an exit or a first aid kit in an emergency.

Safety Words 🦺

ពាក្យប្រើប្រាស់ទូទៅ
Hazard /ˈhæz.ɚd/ គ្រោះថ្នាក់ / ហានិភ័យ
Prohibited /proʊˈhɪb.ɪ.tɪd/ ហាមឃាត់ / មិនអនុញ្ញាត

Rules 📋

ច្បាប់ និងកាតព្វកិច្ច
Mandatory /ˈmæn.də.tɔːr.i/ ជាកាតព្វកិច្ច (ត្រូវតែធ្វើ)
Caution /ˈkɑː.ʃən/ ការប្រុងប្រយ័ត្ន

Danger Types 🧪

ប្រភេទសារធាតុគ្រោះថ្នាក់
Flammable /ˈflæm.ə.bəl/ ងាយឆេះ
Toxic /ˈtɑːk.sɪk/ មានជាតិពុល
⚠️ Warning Signs (Caution)
High Voltage
Flammable
Toxic / Poison
Slippery Surface
🚫 Prohibition Signs (Do Not)
No Entry
No Smoking
No Mobiles
Do Not Touch
🔵 Mandatory Signs (Must Do)
Eye Protection
Wear Mask
Wash Hands
Head Protection
🟢 Safe Condition (Go)
Emergency Exit
First Aid

📝 Safety Assessment

1. Which color and shape indicates a "Warning"?
2. You see a Blue Circle with a Mask. What does it mean?
3. What does the yellow "Flammable" sign tell you?
4. Which sign tells you where to go in a fire?

Real World Tasks

Use your new scanning skills in real life!

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