Psle 2012 Science Questions And Answers Online

B) Frying an egg Explanation: Frying an egg causes denaturation of proteins – a new substance is formed, irreversible.

(a) Which pole of magnet Y is facing magnet X? (b) State the rule you used.

Note: Due to copyright restrictions, the exact 2012 exam paper cannot be reproduced verbatim. Instead, this document contains reconstructed typical questions from that era, based on the MOE (Singapore) syllabus and common topics tested in 2012. Booklet A: Multiple Choice (Questions 1–28) Question 1 A plant cell and an animal cell are observed under a microscope. Which part is present in the plant cell but absent in the animal cell? A) Nucleus B) Cytoplasm C) Cell wall D) Cell membrane psle 2012 science questions and answers

(a) Transpiration. (b) Presence of sunlight / open stomata / water in the soil.

(a) It has become a temporary magnet. (b) Magnetisation by stroking. B) Frying an egg Explanation: Frying an egg

The diagram shows the human digestive system (labelled parts: mouth, oesophagus, stomach, small intestine, large intestine).

(a) Refraction. (b) Light bends when it passes from water to air (different densities). Note: Due to copyright restrictions, the exact 2012

(a) Name the process that caused the water droplets. (b) State one condition needed for this process to occur.

Water from a pond dries up after a few hot days.

(a) What has happened to the steel rod? (b) What is this process called?