2017 P5 SA1 Examination Suggested Answer Set

Errata Sheet

2017 P5 SA1 Examination Paper – Anglo-Chinese School (Junior) (Q36a)

Chose – Circuit A
Use Data – Circuit A has 1 bulb connected in series unlike Circuit B, which has 2 bulbs connected in series.
Explain – Thus, the bulb in Circuit A would light up brighter as there will be more electric current flowing through the bulb in Circuit A.

2017 P5 SA1 Examination Paper – Raffles Girls’ Primary School (Q29b)

Chose – No
Use Data – C can reproduce, unlike A, which cannot reproduce.
Explain – Thus, C must be a living things while A is a non-living thing.

2017 P5 SA1 Examination Paper – Raffles Girls’ Primary School (Q32b)

Chose – Yes
Use Data – The other ovary was not blocked.
Explain – Thus the sperms deposited in the vagina are still able to reach the egg in the intact fallopian tube, allowing one sperm to fuse with the egg in the process of fertilisation.

2017 P5 SA1 Examination Paper – Singapore Chinese Girls’ School (Q36ai)

Diagram error: Erroneous diagram features screens mislabelled as A and B instead of X and Y. The shadows were mistakenly drawn the same size. Please refer to the amended diagram: