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Showing posts from April, 2014

Primary 3 and Primary 4 Science Revision Checklist

Science SA1 is so near the corner, but is your child ready? BAND 1 REVISION CHECKLIST FOR PRIMARY 3 & PRIMARY 4 SCIENCE Day Topic Objectives and Concepts to Master RECREATE OPCM 100% 3 QNS / TYPE 100% ACCURACY Plants & Animals Living Things - 6 characteristics of living things Diversity of Animal - 10 ways to classify animals - 6 animal groups’ characteristics Life cycle Animals - 2/3/4 stages of life cycle - 3 comparison in life cycle stages Life Cycle of flowering Plant - 5 steps germination process - 3 factors of germination - 2 parts and functions of seed (seed coat, seed leaves) Diversity of Plant - 8 ways to classify plants Plant System - 3 plant parts and functions (root, stem, leaf) Human Systems Body Systems

Respiration and Photosynthesis

Respiration and Photosynthesis With air quality going downhill, there may be chances that we need to carry plants around as our oxygen tank.  The working mechanism is based on 2 simple concepts of Primary 5 Science, Respiration and Photosynthesis.  As seen from the picture, the man is wearing a mask connected to the plant. As the man respires, it gives out carbon dioxide.  The carbon dioxide, together with water and light, the green plant with cholorphyll photosynthesises and produces oxygen for the man to respire and survive.   A summary of the both respiration and photosynthesis processes are below: Respiration Respiration is the breaking down of digested food with oxygen to produce energy. The equation of Respiration Sugar (from digested food) +  Oxygen (from inhaled air)   è  ENERGY (for body to use) +  Carbon Dioxide (to exhaled air) + Water Vapour (to exhaled air)  *NOTE* All living things respire including plants. Respiration takes place ALL the

Water Cycle: Formation of Clouds

Water Cycle: Formation of Cloud @ Cradle Mountain Common Primary 5 Science Question Lee Xian sets up an experiment as shown below. She  heated some stones to 150°C and placed them in the  glass bottle as shown in the set up below. After several minutes, she observed water droplets formed on the inside surface of the glass bottle. (a) Explain how are water droplets formed.  (2m) The tap water gains heat from the stones and evaporates to become warmer water vapour which loses heat and condenses onto cooler inner surface of the bottle, forming water droplets. (b) What would Lee Xian observe if she changed the hot stones to ice cubes ? Explain why.  (2m) She would still observe water droplets but at the outer surface of the bottle. The warmer water vapour in the air lost heat and condensed onto cooler outer surface of the bottle, forming water droplets.

Lisu's Malaysia Trip: Adaptation & Mystery caused by Soil Erosion with Application Questions

I went for a short trip to Malaysia for QingMing to pay respect for to my grandfather. It is my first time experience with my family in the ‘tomb sweeping’ experience and right now you must be wondering what does this QingMing festival got to do with Science? Nature of Life Chinese believe that the souls of the deceased will be possessed in some insects and will visit those that are still alive. There was this particularly strange occurrence which we continued to have white butterflies visiting us, our homes and even following us to the basketball court that night. Our eyes were tracing the white butterfly as it flew upwards and away from the basketball court. In a split second a bird zoomed past and in the next moment what we saw were white wings floating downwards. It’s quite upsetting to see that. But yes, its nature of life. So… we have a food chain here: Butterfly  à  Bird   Why did the bird spot the butterfly so easily? The wings of the butterfly is white in colo

PSLE Exam Time Table

Thursday, 25/9/2014 PSLE English Language Paper 1                 0815 – 0925h  PSLE English Language Paper 2                 1030 – 1220h PSLE Foundation English Paper 1               0815 – 0925h  PSLE Foundation English Paper 2               1030 – 1150h  Friday, 26/9/2014 PSLE Mathematics Paper 1                        0815 – 0905h PSLE Mathematics Paper 2                        1015 – 1155h  PSLE Foundation Mathematics Paper 1       0815 – 0915h PSLE Foundation Mathematics Paper 2       1015 – 1130h Monday, 29/9/2014 PSLE Mother Tongue Paper 1                      0815 – 0905h  PSLE Mother Tongue Paper 2                      1015 – 1155h  PSLE Foundation Mother Tongue Paper 1     0815– 0845h Tuesday, 30/9/2014 PSLE Science                                             0815 – 1000 PSLE Foundation Science                            0815 – 0930 Wednesday, 1/10/2014 PSLE Higher Mother Tongue Paper 1            0815 – 0905 PSLE Highe