This printable worksheet challenges students to match five common safety symbols, such as the skull and crossbones and biohazard sign, with their correct meanings.

I'll solve this safety signs worksheet by identifying each symbol and selecting its correct meaning.

Let me go through each sign one by one:

First sign (skull and crossbones):
This is a classic poison symbol. The skull and crossbones universally represent poison or toxic substances.

Second sign (three interlocked circles with dots):
This is the biohazard symbol, which indicates biological hazards such as infectious agents or biohazardous materials.

Third sign (cigarette with red circle and slash):
This is the universal "no smoking" symbol, indicating that smoking is prohibited in the area.

Fourth sign (triangle with exclamation mark):
This is a general warning sign, indicating a hazard or potential danger. It's often used for general caution.

Fifth sign (yellow circle with three blades):
This is the radioactive hazard symbol, also known as the trefoil, which warns of radioactive materials or radiation.

Now I'll provide the complete answer:

1. Skull and crossbones: poison
2. Biohazard symbol: biological hazard
3. No smoking symbol: no smoking
4. Warning triangle: hazard
5. Radioactive symbol: radioactive hazard

These are standard international safety symbols used to communicate hazards quickly and clearly across language barriers.