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CHAPTER 1 - Coggle Diagram
CHAPTER 1
Laboratory Rules
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• Eating, drinking and playing are prohibited in the laboratory.
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• After using, keep the apparatus and chemicals in their original places.
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- The importance of science in various sectors
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• CHEMISTRY- The study of chemical properties, their reactions and
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WHAT IS SCIENCE?
- Is a discipline of knowledge on natural phenomena.
example of natural phenomena:--
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Irritant-
Chemicals which irritate give out vapour or fumes that will hurt the eyes, nose and throat. avoid inhaling the vapour or fumes. Use the chemicals inside a fume chamber. Examples: chloroform and ammonia
Radioactive
Radioactive materials that emit radioactive rays can cause cancer.
Examples: uranium and plutonium.
Corrosive
These chemicals are corrosive. Do not touch these chemicals because it will burn your skin.
Examples: concentrated acid and alkali
Poison/ Toxic
This chemical is poisonous or toxic. Do not drink, eat, smell or taste this chemical.
Examples: mercury and chlorine.
Flammable
This chemical easily vaporizes and is flammable Keep away this chemical from fire or heat sources.
Examples: alcohol and petrol.
Explosive
This chemical is explosive. Use this chemical according to the instructions carefully.
Examples: hydrogen gas and butane gas