By using the unique 2020 papers as a focused study tool, you are not just practicing Biology—you are learning to think like an examiner and maximising your chances of success.
Clear headings with appropriate units—for example, "Time (min)" or "Length (mm)". Units must never be written inside the data cells.
Students were tasked with identifying nutritional components in standard solutions using biochemical reagents. Nutrient Test Reagent Used Step-by-Step Procedure Expected Positive Result (2020 Answers) Benedict's Solution
[O Level] 6093/03 Pure Biology Practical Megathread : r/SGExams
Rate=1Time taken (s)Rate equals the fraction with numerator 1 and denominator Time taken (s) end-fraction
: Students were asked to design an experiment, such as investigating the effect of temperature on the rate of diffusion. Essential Practical Skills Tested
A student placed 3 cm potato strips in 0.0M, 0.2M, and 0.6M sucrose solutions for 30 minutes. The 0.2M strip remained rigid. What does this indicate?
often remained blue or took over 120 seconds, representing a concentration of
Use a colorimeter for more objective measurement.
In 2020, students were instructed to observe a specimen, cut a cross-section, and produce a detailed biological drawing. Rules for an O-Level Biological Drawing