Identify and name common lab safety signs used in scientific environments.

I need to identify the lab safety signs shown in the image. The worksheet is titled "Name the Lab Safety Signs 1" and instructs to identify the lab equipment below, though these are actually safety hazard symbols rather than equipment.

Let me go through each sign systematically, row by row, and identify what each one represents based on standard laboratory safety symbols.

First Row:
- Sign 1: Shows liquid being poured from a beaker onto a hand, indicating a corrosive hazard.
- Sign 2: Shows a flame, indicating a flammable hazard.
- Sign 3: Shows the radiation symbol (three blades around a circle), indicating a radioactive hazard.
- Sign 4: Shows a flame over a circle, which typically indicates an oxidizing agent.

Second Row:
- Sign 5: Shows a person slipping, indicating a slippery surface or trip hazard.
- Sign 6: Shows a thermometer, indicating a high temperature or heat hazard.
- Sign 7: Shows an exclamation mark, which is a general warning symbol for various hazards.
- Sign 8: Shows the biohazard symbol (three interlocking circles), indicating biological hazards.

Third Row:
- Sign 9: Shows steam rising from a surface, indicating a hot surface or high temperature hazard.
- Sign 10: Shows a skull and crossbones, indicating a toxic or poisonous substance.
- Sign 11: Shows a lightning bolt, indicating an electrical hazard.
- Sign 12: Shows a sunburst pattern, indicating a laser or optical radiation hazard.

Now I will provide the complete answer with the correct names for each safety sign.

The lab safety signs in the image are:

First Row:
1. Corrosive
2. Flammable
3. Radioactive
4. Oxidizing

Second Row:
5. Slippery Surface/Trip Hazard
6. High Temperature/Heat
7. General Warning
8. Biohazard

Third Row:
9. Hot Surface
10. Toxic/Poison
11. Electrical Hazard
12. Laser Radiation

These are standard GHS (Globally Harmonized System) and laboratory safety symbols used to warn of potential hazards in scientific environments.