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🔬 Science - Class 9
Unit 1 · Scientific Study

Safety Measures for Practical Work in Science Presentation

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Science and Technology, Class 9, Unit 1

Safety in Practical Work

The water bath · Diluting acid · Eleven safety rules

What Will We Learn Today?

🔥

Why alcohol is heated on a water bath

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How a dilute acid is made from a concentrated one

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The eleven safety rules of the laboratory

☢️

The lesson of Marie Curie's story

Safe heating
How a Water Bath Works
STAND
Stand the small container of alcohol inside a large vessel of water
HEAT
Let the flame heat only the water in the large vessel
WARM
The hot water warms the alcohol gently and safely

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Presenter notes: Today the class learns how to stay safe while doing experiments. Before starting, ask the students what dangers they think a laboratory holds.