The worksheet titled
"Name the Lab Safety Signs 1" asks you to identify common laboratory safety signs. Each sign is a yellow triangle with a black border and a symbol inside, representing different hazards. Below is the correct identification for each sign, row by row:
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Row 1:
1.
Corrosive – This sign shows liquid dripping onto a hand and surface, indicating a substance that can cause chemical burns or damage to skin and materials.
2.
Flammable – A flame symbol indicates that the material can catch fire easily.
3.
Radioactive – The trefoil symbol warns of radiation hazards.
4.
Oxidizing Agent – A flame over a circle represents substances that can increase the risk of fire or explosion by releasing oxygen.
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Row 2:
5.
Slippery Surface / Falling Hazard – A person slipping warns of wet or slippery surfaces.
6.
High Temperature / Hot Surface – A thermometer indicates heat-related danger.
7.
General Warning / Caution – An exclamation mark means there is a general hazard not specified elsewhere.
8.
Biohazard – The three-circle symbol warns of biological dangers (e.g., infectious agents).
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Row 3:
9.
Hot Surface / Steam – Wavy lines above a flat surface indicate hot objects or steam.
10.
Toxic / Poison – A skull and crossbones warns of deadly substances.
11.
Electrical Hazard – A lightning bolt indicates danger from electric shock.
12.
Laser Radiation – A beam of light with a starburst pattern warns of laser hazards.
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✔ Final Answer:
Fill in the blanks as follows:
Row 1:
- Corrosive
- Flammable
- Radioactive
- Oxidizing Agent
Row 2:
- Slippery Surface / Falling Hazard
- High Temperature / Hot Surface
- General Warning / Caution
- Biohazard
Row 3:
- Hot Surface / Steam
- Toxic / Poison
- Electrical Hazard
- Laser Radiation
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🔍 Explanation:
These signs are standardized for laboratory safety and help prevent accidents by alerting personnel to potential dangers. Recognizing them is crucial for safe handling of chemicals, equipment, and biological materials. The symbols follow international standards such as those from OSHA, GHS (Globally Harmonized System), and ISO.
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