What plant should use for the starch in *variegated leaf* experiment?
What plant should use for the starch in *variegated leaf* experiment?
Choose non waxy leaves
Leave from blue pea or balsa...
Tuesday, February 19, 2019
Thursday, January 17, 2019
How do you prepare agar soaked with indicator?
How do you prepare agar soaked with indicator?
2 packs of agar white powder in 1 litre water, bring to a boil. add in Universal indicator (abt 3 drops)pour into container/mould (any container will do)put in fridge and let it set overnight
But...
Wednesday, January 2, 2019
Links for EVG Science Teachers
Hi All,
Below
are the links to sharing
folder, Gdrive & blogspot :-
...
Thursday, March 29, 2018
How to prepare thymolphthalein indicator?
👉How to prepare thymolphthalein indicator?
👉Thymolpthalein is to substitute use of phenolothalein indicator..
👉but normal VA still use methyl orange
👉It will be clear in acid and blue in alkaline. End pt will be clear. Very difficult to determine end point cos colour...
Friday, March 23, 2018
How to rinse pipette filler
When Sodium Hydroxide goes in, it has to be rinse...
It's the easiest way to force water into the filler
video & text courtesy of Mr ThomasAng from Monfort...
Tuesday, January 30, 2018
Where to get clitoria flower
Also can try sales@candy.com.sg
Wholesaler..sells quite cheap flowers/plants. Does e-invoice too.
...
Tuesday, November 21, 2017
Understanding and Preventing Fire and Chemical Hazards in the Laboratory
Code of Practice on Workplace Safety and Health (WSH) on Risk Management
Globally Harmonised System of Classification and Labelling of Chemicals (GHS)
GHS SDS
Source: www.wshc.sg and
Source: Dr Wayne Lee Forday
School of Life Sciences and Chemical Technology
Ngee Ann Polytech...
Monday, November 20, 2017
TSO Network Learning Community Meet
1 Records of Updates of School Safety Handbook_Oct2017.doc
2 Table of Contents_Oct2017.doc
3 Chapter 1 - Safety Framework_Oct2017.doc
4 Chapter 2 - RAMS_Oct2017.doc
6 Chapter 4 - Safety in Special Rooms_Oct2017.doc
9 Chapter 7 - External Safety Validation_Oct2017.doc
2017 TSO NLC meet at Science Centre
2016 TSO NLC meet at Raffles Institution
Sch Sc Lab Management and Safety...
Thursday, May 5, 2016
Pictograms and Hazard Codes
PICTOGRAMS AND HAZARD CODES
Description
Pictogram
Hazard class and hazard category:
Exploding BombGHS01
Unstable explosives
Explosives of Divisions 1.1, 1.2, 1.3, 1.4
Self reactive substances and mixtures, Types A,B
Organic peroxides, Types A,B
FlameGHS02
Flammable...
Wednesday, May 4, 2016
To investigate the Effect of Varying Temperature on the Rate of Respiration of Germinating Seeds
To investigate the Effect of Varying Temperature on the Rate of Respiration of Germinating Seeds
Description
Germinating seeds actively respire to produce energy for growth. The rate of respiration can be obtained by measuring the uptake of oxygen per unit time.
Apparatus...
Monday, November 2, 2015
The Action of Centre of Gravity & Stability
CG - centre of gravity
GPE - gravitational potential energy
stability
...
Thursday, February 26, 2015
Action of Centre of Gravity (CG)
Action of Centre of Gravity (CG)
Concept of :-
CG - centre of gravity
GPE - gravitational potential energy
stability
...
Subscribe to:
Posts (Atom)
