In the second experiment the student dissolved sucrose in water. They used some of the following components to investigate if the resulting solution could conduct electricity. Buzzer Wires Battery (s) Using electrical circuit symbols, draw a labelled diagram of a circuit the student could have used to carry out this investigation. You may use the symbols on pages \( 72-78 \) of the Formulae and Tables booklet to help you answer this question.
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Did you know that solutions containing ionic compounds are excellent conductors of electricity? However, pure sucrose (sugar) is a covalent compound, and when dissolved in water, it doesn’t dissociate into ions. This means the sucrose solution won’t conduct electricity, unlike salt water, which does. So, if the student’s circuit buzzed, it might have been more due to the battery or wires than any ionic magic from the sugar! In practical terms, if you wanted to conduct a similar experiment at home, try substituting sucrose with table salt (sodium chloride). After mixing it with water to create a brine solution, you could measure conductance. Just make sure to have your buzzer and battery handy! Don’t forget to connect everything in the right configuration to hear that satisfying buzz!