This video was shown in 1B today when we were going through the differences between metals and non-metals (Chapter 3: Exploring Diversity of Matter by its Chemical Composition).
16 February 2015
Malleability and Ductillity
This video was shown in 1B today when we were going through the differences between metals and non-metals (Chapter 3: Exploring Diversity of Matter by its Chemical Composition).
13 February 2015
Reflection on Total Defence Day
THINK BACK
- What is the significance of Total Defence for Singapore?
- Why is Total Defence important?
LEARN FROM IT
- What values and attitudes are essential in keeping Singapore safe and secure?
DO IT BETTER
- As we pursue our personal aspirations, what can we do for our family / school / community for Total Defence?
Please do your reflection in the last two pages of your CCE Reflection Journal.
Updated on 16 February: Did you hear the sirens sound off at 6:20pm yesterday? Do you know why the sirens went off at 6:20pm?
<< Sirens at 6.20pm >>Each year on 15 Feb, we commemorate Total Defence Day. But this year, we are doing something...
Posted by Ng Eng Hen on Sunday, February 15, 2015
27 January 2015
What is a tangent to circle?
Tangent to a circle: A line that contacts an arc or circle at only one point.
Tangent line is always at right angles to the radius at the point of contact.
Tangent line is always at right angles to the radius at the point of contact.
Check this out for an interactive experience with a tangent to a circle.
We were talking about tangent to a circle in 3H on 27 January 2015, when discussing the total internal reflection in a semi-circular glass block.
We were talking about tangent to a circle in 3H on 27 January 2015, when discussing the total internal reflection in a semi-circular glass block.
22 January 2015
Does diamond conduct electricity?
The answer is no. Diamond is hard and has high melting point, but it does not conduct electricity as there are no free electrons in diamond.
Read up more about the properties of diamond here.
This question was raised by 1B on 21 January 2015 in the chemistry lab.
This question was raised by 1B on 21 January 2015 in the chemistry lab.
20 January 2015
Vernier calipers simulator
Go to this link and scroll down to the simulator that looks like this:
Please take note that while the main scale is in centimetres, the reading shown is in millimetres. Therefore, the reading of the measurement shown above is 0.75 cm or 7.5 mm.
06 January 2015
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