The Primary School Leaving Examination (PSLE) is a significant milestone in every Singaporean student’s educational journey. While the curriculum evolves, certain past papers remain etched in the minds of educators and parents due to their difficulty or the specific concepts they tested. Among these, the stands out as a landmark examination.

(a) Photosynthesis – produces oxygen. (b) Carbon dioxide.

A cheek cell and an onion cell are observed.

Provide to test your understanding.

A fish tank contains 5 fish, some aquatic plants, and a filter. The tank is covered and placed near a window.