Q&A

20 Aug 13, 09:17 PM Rachel: Miss Seetoh, Is it a must to know what the 6's thermometer is made off? Miss ST: You need to know that Mercury is inside the thermometer. Think about why MERCURY is being used in a thermometer????

20 Aug 13, 08:45 PM Shao yang: Good evening Ms seetoh,may i know what are sediments Miss ST: Sediments are broken pieces of rocks eg fragments, soil or even sand. There comes in different SIZES, and are usually carried by the river.

20 Aug 13, 08:17 PM Jeremy lee: Miss seetoh is tomorrow's quiz an open book one? Miss ST: Nope. Please study for it. Its on weather and climate. Take it as a revision for CA4 next mon.

20 Aug 13, 07:50 PM Weng Chuin: teacher what is riverbed? Miss ST: It is the bottom of the river.

20 Aug 13, 07:49 PM Weng Chuin: teacher what is river bank? Miss ST: River bank refers to the elevated SIDES of the river, which helps to prevent the river water from flowing into the surrounding area.

20 Aug 13, 07:48 PM Weng Chuin: Miss See Toh,for floodplain & levee what the answer mean by deposition and also what the answer mean by coarser & heavier sediments are deposited nearer to the river bank. Miss ST: When the river flows, it carries rocks and other sediments with it. When the river water carried a load that is too heavy, it starts to deposit the rocks, pebbles and sand in the river. This is known as DEPOSITION. Those rocks that are heavier will be 'dropped' nearer to the river banks (edge/side of the river). Those sand and smaller pebbles that are lighter may be carried further away by the river water and depositied further away.

20 Aug 13, 06:19 PM Ronn: Hi Miss See Toh, i know this may look like a spam but i feel this video is good.http://www.youtube.com/watch?v=7uiv6tKtoKg Miss ST: Interesting =) Thanks for the share.

20 Aug 13, 11:08 AM eunice: *country

20 Aug 13, 11:08 AM eunice: i still don't understannd how do you know which ciountry is high pop and low pop? Miss ST: Countries that are developing  eg India/Africa usually has HIGH Population because of HIGH BR. Countries that are developed eg Singapore have LOW population as we have LOW BR.

20 Aug 13, 10:56 AM tiffany: For Drainage basin , so you mean that o n the confluence comes from many different river? Miss ST: The confluence is the main river, it can be connected by many small river streams, called tributaries.

20 Aug 13, 10:52 AM Zubir: Teacher what are the factors responsible for the Ageing populations in Singapore and Japan ? Miss ST: Educated woman tends to focus on work and marry later, high living standards makes it costly to have more children etc.. please check earlier slides for answers.

19 Aug 13, 10:01 PM whitney: cher, for the hurricane what do you mean by self-sustaining storm system? Miss ST: Self sustaining means it continues on its own without needing any external influence. So a hurriance on its own has enough elements to create a storm eg strong winds, high energy, thus the hurricane continues without need of external factors.

19 Aug 13, 09:34 PM whitney: for Impacts of climate on people, on slide 16 there is heat waves, what is heat waves? Is it just hot wind??(tks) Miss ST: It is a long period of hot weather and it tends to be very HUMID.

19 Aug 13, 08:45 PM whitney: what is precipitation? Miss ST: RAIN

19 Aug 13, 08:44 PM whitney: Cher the Temperate climate have large temperature range, does that mean the daily temperature can be very wide? like morning 29C then at night 14C? Miss ST: YES. Day and night temperature can be very different.

19 Aug 13, 08:40 PM whitney: why tropical climate does not have four seasons? Is it because, it is in the middle, so there is no four season? (Tks) Miss ST: It is because our temperature does not change that much throughout the year. Due to the fact that we are near the equator and receive similar amount of sunlight throughout the year.

19 Aug 13, 08:04 PM