NG BENG CHOO EL-B29
NG BENG CHOO (EL-B29)
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Saturday, 17 December 2011
Saturday, 10 December 2011
Exercise
1. Table 1 shows the result of heating and discontinued heating of 800 ml of water.
Heating | Discontinued heating | ||||||||
Time (minutes) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Water Temperature ( °C) | 40 | 50 | 60 | 70 | 80 | 90 | 80 | 70 | 60 |
Table 1
(a) Based on the result given in the table, what is the trend of change in the temperature of the water from the 1st to the 8th minute?
_________________________________________________________________________[1mark]
(b) State an inference based on the trend of change in the water temperature in 1(a).
__________________________________________________________________________[1mark]
(c) Based on the experiment, state what is / are
1. changed___________________________________________________________[1mark]
2. measured__________________________________________________________[1mark]
(d) If the heating of the water is discontinued, predict the time it will take for the water to return to the temperature of 40 °C.
________________________________________________________________________[1mark]
Thursday, 8 December 2011
Exercise For Year 6
1. Which of the following are living things? I Humans III Animals II Plants IV Microorganisms A. I only B. II and III only C. I, II and III only D. I, II, III and IV
B. II and III D. III and IV
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Saturday, 3 December 2011
Wednesday, 16 November 2011
The different food that animals eat
Do you eat like a horse? Or more like a bird? As you might expect, different animals eat different things. Some animals specialize in eating one particularly rich food source, while others eat whatever they can find. This video segment samples the diversity of feeding habits among some of the world's creatures.
Saturday, 12 November 2011
Animal Characteristics
What is an animal? It's a simple enough question, but the answer is complex and requires an understanding of some rather hefty scientific concepts and terms. Here we'll explore the basic characteristics that make an organism an animal and attempt to decipher the scientific jargon that surrounds these concepts.
It's easy to say, for instance, that a giraffe, a whale, or a dog is an animal. But when it comes down to making a list of animal characteristics—identifying specific traits shared by all animals—it gets complicated.
The list that follows describes characteristics shared by all animals, from snails and zebras to mongooses and sea stars. These characteristics help us to declare that, for instance, corals are animals, not plants. They help us trace the evolution of animals and build a framework for placing animals into subcategories that are more familiar to us such as birds, mammals, reptiles or amphibians.
It's easy to say, for instance, that a giraffe, a whale, or a dog is an animal. But when it comes down to making a list of animal characteristics—identifying specific traits shared by all animals—it gets complicated.
The list that follows describes characteristics shared by all animals, from snails and zebras to mongooses and sea stars. These characteristics help us to declare that, for instance, corals are animals, not plants. They help us trace the evolution of animals and build a framework for placing animals into subcategories that are more familiar to us such as birds, mammals, reptiles or amphibians.
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