Mr Lam

science year 7 secondary secondary school temperature measurement mathematics weight volume education time measure length laboratory liquid year 9 catalyst analogy contact area boy concentration year 10 chemistry girl bonding reaction rate mr lam decimal dividend ascending order fraction divisor division descending order shift number sense. quotient red color purple pigment frequency primary light colors colour magenta green filter filters colours cyan blue rod primary color cone wavelength immiscible mixture mass decantation matter floatation separation solvent space element solution heterogeneous solute filtration mixtures homogeneous miscible workout equations equation mathematical expressions algebra grammar mathematic expression grammars accuracy terminology average data precision report laborartory laborartory rectangle conditions regular square equilateral polygon equiangular burette safety pipette