Investigation 8: Detecting Sound Materials needed: For each investigation Solid lead nitrate A hard glass test tube you will require the A test tube holder materials indicated. A Bunsen burner Method: Put a pinch of solid lead nitrate into a hard glass test tube. Light up a Bunsen burner. With the help of a test tube holder, heat the test tube (at the bottom). (i) Can you hear a sound? Describe it. (ii) Can you see coloured vapour? Describe it. (Be You should record careful the coloured vapour is poisonous). your answers in the space provided.
Investigation 8: Detecting Sound For each investigation you will require the materials indicated. You should record your answers in the space provided. Materials needed: Solid lead nitrate A hard glass test tube A test tube holder A Bunsen burner Method: Put a pinch of solid lead nitrate into a hard glass test tube. Light up a Bunsen burner. With the help of a test tube holder, heat the test tube (at the bottom). (i) Can you hear a sound? Describe it. (ii) Can you see coloured vapour? Describe it. (Be careful the coloured vapour is poisonous).
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