Guiding You Towards Your Rainbow
Guiding You Towards Your Rainbow
   
Friday, November 2, 2007
Science Notes Answers 2
Continuation of heat chapter...

Heat and Matter

1. higher
2. milk, water, water, milk, same.
3. insulators
4. Good
5. metals
6. conduction
7. copper, aluminium, stainless, steel
8. Poor
9. wood, cotton, paper, wool
11. insulators, transfer
12. handles
13. heat
14. hot, cold
15. poor
16. heat loss

Heat and Matter- heating matter

1. expands, contracts
2. expand, metal, glass
3. expands, contracts
4. inflated, air
5. deflated
6. expand, contract
7. air, expands
8. air, expanded
9. expansion
10. contraction
11. longer, shorter
12. heat

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posted by Ms. Irene Teo @ 9:31 AM   0 comments
Energy Process Skills Answers
Worksheet 10

1. Their spoons have become too hot for them to hold.
2. Copper is the best conductor.
3. Clay, china/porcelain.

Worksheet 11

1. It has lost some heat to the surrounding air.
2. The jar wrapped in tissue paper.
3. The styrofoam.
4. She should put them into a box made of styrofoam material.

Worksheet 12

1. Metal is a good conductor of heat. When a saucepan of food is placed over a fire, the heat from it will travel quickly to the food.
2. Plastics are poor conductors/insulators of heat. The heat will not travel so quickly to the hands.
3i. I will put on a pair of oven gloves.
3ii. The gloves will act as an insulator to prevent the heat from reaching my hands quickly.
4. The plastic handle of an iron prevents the heat from burning our hands.

Worksheet 13

1. cholorophyll
2. photosynthesis
3. herbivores
4. carnivores
5. omnivores
6. energy
7. Food from Animals- fishballs, beef steak, pork chop, satay, roast chicken.
Food from Plants- soya bean curd, lettuce, potato, nuts, salad.

Worksheet 14

1. SUN
2. LOSS
3. INSULATOR
4. FRICTION
5. CELSIUS
6. HEAT
7. EXPAND
8. TEMPERATURE
9. MERCURY
10. THERMOMETER

Worksheet 15

1. No. The amount of water used in Beaker A and B is not the same.
2. No. The no. of sugar cubes and amount of water used are different.
3. Beakers A and D. Only the temperature differs. All other factors remain the same.
4. The sugar cube in Beaker D dissolves faster than the one in Beaker A. Heat helps a substance to dissolve faster.

Worksheet 16

1. 2
2. 4
3. 4

Worksheet 17

1. 3
2. 4
3. 1
4. 2

Worksheet 18

1. He can pour hot water over it.
The heated air in the ping-pong ball will escape through the hole instead of pushing out the dent.
2. She is trying to make the bottle cap expand. Yes. The expanded cap will loosen the grip on the bottle.
3. The heat from the boiling soup transfers through the spoon to Sonya's hand.

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posted by Ms. Irene Teo @ 9:14 AM   0 comments
Wednesday, October 31, 2007
Calculator Purchase
Please remember to bring $18 for your calculator purchase tomorrow.

You are strongly encouraged to purchase the calculator tomorrow, because:
  • Our school has decided to adopt this calculator model. So almost everyone will be using the same model, which is good for teaching and learning.
  • It is one of the approved models by MOE
  • It has got the latest function (even I'm wow-ed by it!)
  • It's cheaper! Retail price $22.

So get yours tomorrow! (I'm getting one too!)

P.s They did not pay me to advertise for them =P

_________________________________________________

P4.6

Please bring your 4B Science activity book tomorrow. We have to cover our remaining Heat topic + experiments + Heat test.

The sooner we complete, the sooner we can move on to learn how to blog!

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posted by Ms. Irene Teo @ 3:47 PM   0 comments
Monday, October 15, 2007
Science Notes Answers
Chapters 1 and 2: Matter and the Three States of Matter


  1. 1. space
  2. 2. Mass
  3. 3. Solid, Liquid, Gas
  4. 4. solid
  5. 5. liquid
  6. 6. gas
  7. 7. atmosphere
  8. 8. nitrogen, oxygen
  9. 9. carbon dioxide, rare gases, water vapour
  10. 10. Oxygen
  11. 11. oxygen
  12. 12. Oxygen
  13. 13. Nitrogen
  14. 14. carbon dioxide, photosynthesis
  15. 15. photosynthesis
  16. 16. Water vapour, water vapour
  17. 17. rare gases
  18. 18. wind.

Chapter 3: Water and Changes of State

  1. 1. solid, liquid, gas
  2. 2. gains, loses
  3. 3. temperature, degree celsius
  4. 4. liquid, ice, solid, gaseous
  5. 5. freezing, melting, evaporation, condensation
  6. 6. loses, liquid, solid, freezing, 0
  7. 7. heat, solid, liquid, melting, gains,0
  8. 8. boiling
  9. 9. evaporation, temperature
  10. 10. temperature, wind, exposed surface, humidity (a) higher, temperature (b) stronger, wind (c) larger, exposed surface (d) lower
  11. 11. evaporation
  12. 12. condensation

Chapter 4: Water Cycle

  1. 1. Heat
  2. 2. water vapour, evaporates
  3. 3. condenses, clouds, rain
  4. 4. soil
  5. 5. roots
  6. 6. seas, rivers, ponds, reservoirs
  7. 7. water treatment, drinking, cooking, washing
  8. 8. evaporate, water cycle
  9. 9. state, never-ending

Chapter 5: Water A Precious Resource

  1. 1. water
  2. 2. cooking, cooling, cleaning, drinking
  3. 3. -
  4. 4. tap, wells, rivers, ponds, lakes
  5. 5. harmful substances
  6. 6. -
  7. 7. Animals, plants, humans
  8. 8. Littering and dumping, oil spills, deforestation
  9. 9. Littering and dumping
  10. 10. contaminates, harmful substances
  11. 11. -
  12. 12. water bodies
  13. 13. oxygen, die
  14. 14. sticks, clumped
  15. 15. Deforestation
  16. 16. removed
  17. 17. pollution
  18. 18. cloudy, sunlight
  19. 19. -
  20. 20. -
  21. 21. Desalination
  22. 22. -
  23. 23. reducing, reusing, recycling

Chapter 6: Air & Respiratory System

  1. 1. wind
  2. 2. a) nitrogen, b) oxygen, c) carbon dioxide, water vapour and other gases
  3. 3. oxygen, carbon dioxide
  4. 4. Plants
  5. 5. Breathing
  6. 6. respiration
  7. 7. nose, mouth, windpipe, lungs, air sacs
  8. 8. diaphragm
  9. 9. out, upwards, downwards
  10. 10. mucus
  11. 11. faster
  12. 12. gills
  13. 13. opposite
  14. 14. blowholes
  15. 15. oxygen
  16. 16. stomata, stoma
  17. 17. underside
  18. 18. oxygen, Carbon dioxide, respiration
  19. 19. Oxygen, photosynthesis
  20. 20. animals, dissolve
  21. 21. -
  22. 22. photosynthesis, respiration
  23. 23. ground
  24. 24. skin

Chapter 7: The Circulatory System

  1. 1. heart, blood
  2. 2. oxygen, body cells, lungs
  3. 3. Blood, water, food
  4. 4. Kidneys, liver
  5. 5. middle
  6. 6. arteries, capillaries, veins
  7. 7. oxygen
  8. 8. carbon dioxide
  9. 9. contraction, relaxaion
  10. 10. pulse
  11. 11. sixty, seventy
  12. 12. increases
  13. 13. food, oxygen, energy
  14. 14. photosynthesis
  15. 15. water, mineral salts, roots
  16. 16. xylem, phloem
  17. 17. roots
  18. 18. phloem

Chapters 8 & 9: Energy and Light

  1. 1. energy, see
  2. 2. Sun
  3. 3. own light
  4. 4. fireflies, light, stars
  5. 5. reflected
  6. 6. mirror, mirror's, left, right
  7. 7. Moon, Sun
  8. 8. glass, plastic, transparent
  9. 9. metal, clay/cardboard, opaque
  10. 10. glass, tracing, cloth, translucent
  11. 11. straight
  12. 12. blocks
  13. 13. opaque
  14. 14. size
  15. 15. smaller, bigger
  16. 16. length, position
  17. 17. east, long
  18. 18. short
  19. 19. west, long

Chapter 10: Heat

  1. 1. energy
  2. 2. Sun
  3. 3. heat
  4. 4. fuels, wood, charcoal, oil, petroleum, natural gases
  5. 5. petroleum, diesel, kerosene, liquefied petroleum gas
  6. 6. electricity
  7. 7. water, steam, electricity
  8. 8. electricity
  9. 9. nichrome
  10. 10. electrical iron, electrical kettle, electrical oven, rice cooker, bread toaster
  11. 11. friction, heat
  12. 12. heat
  13. 13. Sun, fire, light bulb
  14. 14. tungsten, heat, light
  15. 15. cook, dry

Heat and temperature

  1. 1. temperature
  2. 2. touch
  3. 3. thermometer
  4. 4. rise, fall
  5. 5. alcohol, colourless
  6. 6. degrees celsius
  7. 7. clinical
  8. 8. mercury, silver
  9. 9. 36.9
  10. 10. rise
  11. 11. warm

The chapter on heat will be tested right up till heat gain, heat loss only.

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posted by Ms. Irene Teo @ 7:37 PM   0 comments
Monday, July 30, 2007
Science Practical Assessment (SPA) Timing
Here is the timing and instructions for the SPA this coming Thursday.

P4.6- 8.15 a.m. to 8.30 p.m.
P4.8- 9.30 a.m. to 9.45 a.m.

You will have to get into 4 rows for the assessment.
Row 1 - Index no. 1 to 10
Row 2- Index no. 11 to 20
Row 3- Index no. 21 to 30
Row 4- Index no. 31 to 40

I will further brief you on the movement during the assessment tomorrow.

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posted by Ms. Irene Teo @ 5:49 PM   0 comments
Thursday, July 26, 2007
Science Practical Assessment (SPA)

We will be having our Science Practical Assessment (SPA) on 2 August 2007 (Thursday).
The total marks awarded will be 10, and it will go into your final grade for SA2.

Skills Tested:
-Sorting
-Classification
-Measurement

Topics Tested:
-Magnetism
-Leaf Veins, Shape, Edge
-Materials and Properties
-Volume of objects

P4.6: Please revise these skills/topics and come to me for clarification if you have any doubts.

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posted by Ms. Irene Teo @ 11:24 AM   0 comments



About The Guide


Guide: Ms. Irene Teo

Mission: Shaping characters while leading pupils towards their goals.

Contact: teo_ai_ling_irene@moe.edu.sg

CLASS 4.6


MATHEMATICS:


NO HOMEWORK!



__________________________

SCIENCE:


NO HOMEWORK!


CLASS 4.8


ENGLISH:


NO HOMEWORK!


______________________________

SOCIAL STUDIES:


_______________________________

HEALTH ED:


Happy Birthday!


Cheers to the October birthday babies!


4.6
- Yuen Neng (1 Nov)
- Yong Yu (19 Nov)
- Jia Ci (22 Nov)

4.8
- Eric (1 Nov)
- Raymond (8 Nov)
- Gerald (8 Nov)
- Elize (21 Nov)
- Charmaine (22 Nov)
- Jing Jie (29 Nov)


May all of you fulfill your hearts' desires and grow in wisdom!

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