#1 Entry- Laboratory Equipment and Set-Up

Elements, Compounds and Mixtures

For today's lesson, we started off with a revision of our previous topic covered in NaPS - drawing of experimental apparatus. It was refreshing because it had been a long break since we last got a chance to draw these apparatus (since Semester 1).

Some of the apparatuses that we were required to draw:

Mr Foo had us try it out ourselves first so that he could critique us when he marks our work. He pointed out some of the common mistakes that were often made:

Mistakes:

1. Sketchy lines

2. Disconnected drawing

3. An arrowhead pointing towards the apparatus

4. Wrong scale of apparatus (according to those drawn, e.g tripod stand drawn the same size as evaporating dish)

5. Freehand drawing of apparatus

Corrections:

1. Lines are supposed to be neat and straight

2. All lines to be connected and continuous, no breaks between

3. Use a line to indicate instead (scientific way)

4. Draw apparatus to scale with other apparatus drawn

5. Always draw with a ruler

That was all for today. 

Coming up next... Elements, Compounds and Mixtures