Category Archives: Secondary

Tuition Center Singapore Biology Tuition – Cell Structure and Organisation    Common Error 1 Since cell walls are rigid, they should be impermeable. Correct Concept 1 The rigidity of a structure is not indicative of its permeability. The rigidity of cell walls is useful in maintaining the turgidity of plants and preventing the bursting of… Continue reading →

Tuition Center Singapore Physics Tuition – Kinematics Definitions Displacement is the measurement of distance from a reference point to another point in a certain direction. The SI unit of displacement and distance is metre (m). Velocity is the rate of change of displacement. Speed is the rate of change of distance. Velocity is a vector… Continue reading →

Tuition Center Singapore Chemistry Tuition – Experimental Techniques Important Definitions   Filtrate is the liquid that passes through the filter paper. Distillation is a technique for separating a liquid by boiling the liquid and condensing the vapour. The distillate is the product obtained from condensation during distillation. Residue is the solid that remains on the… Continue reading →

Tuition Singapore Secondary Math Tuition -Prime Numbers, Prime Factorisation and Index Notation Note : 0 and 1 are neither prime nor composite numbers   A prime number is a whole number greater than 1 that has exactly two different factors, 1 and itself. E.g. 5 = 1 x 5 Since 5 has no other whole… Continue reading →

Tuition Singapore Secondary Science Tuition – How to design a good experiment During the planning of an experiment, it is important to identify and to control the variables. Variables are factors/conditions which have an effect on the experiment. It is important to know the cause and effect relationships between the variable you change and the… Continue reading →