ISBN-13: 9786200101693 / Angielski / Miękka / 2019 / 52 str.
Excitement in science is experienced by doing experiments and observations. this Science book contains a large number of small experiments. As a first step, in each period, if a teacher showed one small experiment, learning science will become very exciting. This experiments are useful for basic chemistry study. this book contains a experiments which are useful to analysis of waste water parameter like pH, Conductometry, Hardness, Metal analysis and other parameter.