This blank worksheet challenges students to identify standard lab safety symbols and write down the corresponding safety rules.

Here is the completed worksheet with the meanings of the symbols and the correct safety actions for each.

1. Radiation Symbol (Trefoil)
* What does it mean? Radioactive material or radiation hazard.
* What can you do? Stay away from the source. Follow special handling instructions given by your teacher. Do not touch unless instructed.

2. Skull and Crossbones
* What does it mean? Poisonous or toxic substance. It can cause death if swallowed, inhaled, or absorbed through skin.
* What can you do? Do not eat, drink, or taste anything in the lab. Wash hands thoroughly after handling. If spilled, tell the teacher immediately.

3. Safety Goggles
* What does it mean? Eye protection required. There is a risk of flying particles, splashes, or harmful light.
* What can you do? Wear approved safety goggles at all times during the experiment. Do not take them off until told to do so.

4. Biohazard Symbol
* What does it mean? Biological hazard. This involves bacteria, viruses, blood, or other infectious materials.
* What can you do? Handle with extreme care. Wear gloves. Dispose of materials in special biohazard containers, not regular trash. Wash hands well afterwards.

5. Heat-Resistant Glove / Oven Mitt
* What does it mean? Hot surface or hot object hazard.
* What can you do? Use tongs, test tube holders, or heat-resistant gloves when handling hot glassware or equipment. Let objects cool before touching them directly.

6. No Open Flame / Flammable
* What does it mean? Flammable materials are present. Fire hazard.
* What can you do? Keep away from open flames, sparks, or heat sources. Tie back long hair and loose clothing. Know where the fire extinguisher is.

7. Corrosive (Hand being burned)
* What does it mean? Corrosive substance. It can burn skin, eyes, and damage clothing or surfaces (like strong acids or bases).
* What can you do? Wear gloves and goggles. Be careful not to spill. If it gets on your skin, rinse with water for 15 minutes and tell the teacher.

8. Lab Apron / Protective Clothing
* What does it mean? Protective clothing required. Risk of spills or stains.
* What can you do? Wear a lab apron or coat to protect your clothes and skin from chemical spills. Button it up properly.

9. Electrical Hazard (Plug/Cord)
* What does it mean? Electrical shock hazard.
* What can you do? Keep electrical equipment away from water. Do not use frayed cords. Pull the plug, not the cord, to disconnect. Tell the teacher if equipment is damaged.

10. Broken Glass / Sharp Object
* What does it mean? Sharp object or broken glass hazard. Risk of cuts.
* What can you do? Handle glassware carefully. Never pick up broken glass with your bare hands; use a brush and dustpan. Dispose of broken glass in the designated "Sharps" or broken glass container.

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Final Answer:

| Symbol | What does it mean? | What can you do? |
| :--- | :--- | :--- |
| (Radiation) | Radioactive material / Radiation hazard | Stay away; follow specific teacher instructions for handling. |
| (Skull & Crossbones) | Poison / Toxic substance | Do not ingest or inhale. Wash hands after use. Tell teacher if spilled. |
| (Goggles) | Eye hazard | Wear safety goggles at all times to protect eyes from splashes/debris. |
| (Biohazard) | Biological hazard (bacteria/viruses) | Handle with care. Use gloves. Dispose of in biohazard bins only. |
| (Hot Hand/Glove) | Hot surface / Burn hazard | Use tongs or heat-resistant gloves. Let items cool before touching. |
| (No Flame) | Flammable material / Fire hazard | Keep away from open flames. Tie back hair/clothing. |
| (Corrosive Hand) | Corrosive substance (burns skin) | Wear gloves/goggles. Rinse skin with water if contact occurs. |
| (Apron) | Spill hazard / Clothing protection | Wear a lab apron to protect skin and clothes from chemicals. |
| (Electric Plug) | Electrical shock hazard | Keep dry. Check cords for damage. Unplug by pulling the plug head. |
| (Broken Glass) | Sharp object / Cut hazard | Handle glass carefully. Use brush/dustpan for cleanup. Dispose in sharps container. |