P6 Science · Chapter 20brightbit.net/worksheets

PSLE Review — Physical Sciences

Name: ______________________Class: ________Date: ____________Score: ____ / 5

1.
Three bulbs are connected in parallel. One bulb burns out. What happens to the remaining two?
(a) They all go out(b) They both glow brighter(c) They continue to glow at the same brightness(d) One goes out and one glows brighter
2.
Which sequence shows the correct energy conversions in a coal-fired power station?
(a) Electrical → Chemical → Heat → Kinetic(b) Chemical → Heat → Kinetic → Electrical(c) Kinetic → Heat → Chemical → Electrical(d) Heat → Chemical → Kinetic → Electrical
3.
Salt water is poured through filter paper. What passes through?
(a) Only water passes through; salt is caught by the filter(b) Both salt and water pass through (the solution passes through)(c) Only salt passes through; water is blocked(d) Neither passes through
4.
A student heats a mixture of water (b.p. 100°C) and ethanol (b.p. 78°C). Which method BEST separates the two liquids?
(a) Filtration(b) Evaporation(c) Magnetic separation(d) Distillation
5.
Which combination of evidence is MOST consistent with a chemical change having occurred?
(a) Change in shape and change in size(b) Change in colour, gas produced, and the change is irreversible(c) Change in state and change in temperature only(d) Change in mass without any new substance

Answer key — P6 Science: PSLE Review — Physical Sciences

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