The method and the results are on the simple circuits lab. Do the analysis yourself first, then check the answers below.
Quick answer: A simple electric circuit is a complete, closed loop of conductors that joins a cell to components such as a bulb and a switch. These answers go with the grade 6 science lab on simple circuits: the graph, the calculations, the uncertainties and the conclusion explained, for all 7 analysis questions.
Here are the simple circuits lab answers for grade 6 science: graph, calculations, uncertainties and conclusion. First do the lab yourself, then compare, and go back to the lesson if needed.
The sample data show that metals and graphite conduct while plastic, rubber, glass and wood do not. Compare your own tester results with these answers and check that you explained each pattern.
Metals conduct, while plastic, rubber, glass and wood do not. Graphite is a non-metal that conducts.
Question 3 The painted key
The paint is an insulator and covers the metal, so the handle blocked the current. The bare steel blade is a conductor, so the bulb lit when the clips touched metal.
Question 4 Dim bulb
Graphite conducts, but not as well as metals, so less current flows and the bulb is dim.
Question 5 Fair test
Use the same cell and bulb and clip the object in the same way (with a similar length of material between the clips).
Question 6 Safety
Mains electricity can cause a fatal shock; a 1.5 V cell cannot.
Question 7 Improvement
Replace the bulb with a meter that measures the current, or compare several bulbs of the same type, and repeat each test to check the result.
