Jawapan

2016-04-02T23:47:36+08:00
Sebab potassium and sodium unsur unsur kumpulan 1 and they're reactive
  • Pengguna Brainly
2016-04-03T14:22:30+08:00
Similarly, learning by doing may not be appropriate where there are possible safety risks. Teacher demonstrations can introduce students to specialised equipment and ... It is important to carry out the demonstration neatly and systematically. .... draw their conclusions from the experiment; ways of involving the students