Wednesday, 28 November 2012


Microorganisms are very tiny one-celled organisms, viruses, fungi, and bacteria, and are found everywhere in the world. They are found in all living things, plants and animal. There are more microorganisms on and inside your body than there are cells that make up your entire body. Microorganisms can live in the air, on land, and in fresh or salt water environments. Some of them, pathogens, can be harmful and causes diseases, but there are some microorganisms that are needed for living things to survive.






Monday, 12 November 2012

Animal Quiz

1. What food makes up nearly all (around 99%) of a Giant Panda’s diet?
2. True or false? Mice live for up to 10 years.
3. What is the name of the phobia that involves an abnormal fear of spiders?
4. What is the largest type of ‘big cat’ in the world?
5. True or false? Crocodiles have no sweat glands so they use their mouths to release heat.
6. Eagles are very good at spotting potential prey from a long distance, why?
7. What are female elephants called?
8. True or false? Bats are mammals.
9. Bees are found on every continent of earth except for one, which is it?
10. True or false? Cats spend an average of 13 to 14 hours a day sleeping.
11. What is the fastest land animal in the world?
12. A ‘doe’ is what kind of animal?
13. True or false? Cougar’s are herbivores.
14. Groups of lions are known as what?
15. Is a dolphin a mammal?
16. What is the largest land animal in the world?
17. True of false? Snakes have slimy skin.
18. What is the only continent on earth where Giraffes live in the wild?
19. How many pairs of wings does a bee have?
20. What type of animal is the largest primate in the world?
21. Is a shark a fish or a mammal?
22. What is the most recognizable feature of a hedgehog’s appearance?
23. True or false? Owls are far-sighted, meaning that anything within a few inches of their eyes can’t be seen properly.
24. What is the name of an adult female horse?
25. What are baby goats called?
26. What is the tallest animal in the world?
27. True or false? Rabbits are born blind.
28. What is the most recognizable physical feature of the male lion?
29. How many legs does a spider have?
30. The crocodile species is believed to have been around for how long? 2 million years or 200 million years?

Sunday, 11 November 2012

Solar Eclipse Educational Video

What is Solar Eclipse ? An eclipse of the sun occurs when the moon revolving in its orbit around the earth comes between the sun and the earth. The moon blocks the light of the sun and a shadow of the moon is cast over the earth's surface..

How does the moon block the sun?
By a fortunate coincidence, the sun's diameter is 400 times larger than that of the moon, and at the same time, it is 400 times as far away. From where we are, this creates the illusion that they are the same size. If we look through a filter at the sun, it looks exactly like the moon on a full moon night. When the moon passes in front of the sun, the shadow falls on the earth and it appears to exactly cover the sun's disc. This is what a solar eclipse is - a shadow.

Saturday, 10 November 2012

What is a Lunar Eclipse?

A lunar eclipse is when the Earth comes between the Sun and the Moon causing a shadow of Earth on the Moon. The shadow can partially or totally cover the Moon, giving us partial and total eclipses.
Unlike solar eclipses, lunar eclipses are obviously safe to observe without protective gear for the eyes. You may notice that the moon looks spectacularly bright just before and after the eclipse. The Moon's surface is rather reflective, and close to the time of a lunar eclipse you are seeing the most direct reflection possible from the Moon's surface. If it is a very clear night, you will get a beautiful view of the moon. You will see various phases of illumination similar to those observed over the course of a lunar cycle.
A lunar eclipse occurs when the full Moon lines up precisely with the Earth and the Sun, and the Earth's shadow falls on the Moon. Greek astronomers had figured that out over 2000 years ago, and knew that the curved shadow on the Moon indicated that the Earth was a sphere.

Thursday, 8 November 2012

Answering Techniques

How To Answer Questions of Section B for UPSR Science paper


Distance of the object from the light source /cm : 30, 40, 50, 60,
Size of shadow /cm2 : 10, 8, 6, 4

1.    ( i )   what is changed?    :  distance of the object from the light source
      ( ii )  what is measured?  :  Size of the shadow
      ( iii ) what to keep the same?  :  the position of the light source

 2.  What is the purpose/aim of the experiment?
      To investigate the relationship between the distance of the object from the light source and
      the size of  the shadow.

 3.  What is the relationship between the distance of the object from the light source and size
      of shadow?  
      When the distance increases, the size of the shadow decreases.

 4.  What is the trend in the size of the shadow?
      Decreasing ( words used to describe the trend are: increase, decrease or keep the same )

 5.  Predict  the size of shadow when the distance of the object from the light source is 70cm.

 6.  When a piece of glass is placed in between the light source and the screen, what can
      you observe? (observation )
      There is no shadow shown on the screen. 

7.   What can you infer? (inference )
      Because the glass is a transparent object.

 8.  What can you conclude from the experiment? (conclusion )
      When the distance of the object from the light source increase, the size of the shadow will
      increase too.

Wednesday, 7 November 2012

Rafflesia -- The Endangered Plant Species


One of the great wonders of the world of plants is the Rafflesia arnoldii (member of the Rafflesiaceae family). This plant has no leaves, stem or roots. The only thing it has is one huge flower, one meter in diameter, weighing up to 8 kg (16 lbs).

The Rafflesia can only be seen in the tropical steppes of the islands of Borneo and Sumatra. It was discovered in the 1818 by the English traveler Dr. Joseph Arnold during his expedition on the island of Sumatra.