Psle 2012 Science Questions And Answers Official

Which of the following is an example of a chemical change? A) Melting butter B) Frying an egg C) Dissolving sugar in water D) Tearing paper

(a) Transpiration. (b) Presence of sunlight / open stomata / water in the soil. psle 2012 science questions and answers

(a) In which circuit will the bulb be brighter? (b) Explain your answer. Which of the following is an example of a chemical change

A mango seed is planted in a pot with soil. It is watered regularly but kept in a dark cupboard. After 2 weeks, the seed sprouts but has yellow leaves. psle 2012 science questions and answers