Dunia Sains
Friday, 7 December 2012
Thursday, 6 December 2012
Tuesday, 4 December 2012
Monday, 3 December 2012
Wednesday, 28 November 2012
Microorganisms
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.
protozoa |
virus |
fungi |
bacteria |
Monday, 12 November 2012
Animal Quiz
1. What food makes up nearly all (around 99%) of a
Giant Panda’s diet?
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2. True or false? Mice live for up to 10 years.
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3. What is the name of the phobia that involves an
abnormal fear of spiders?
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4. What is the largest type of ‘big cat’ in the world?
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5. True or false? Crocodiles have no sweat glands so
they use their mouths to release heat.
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6. Eagles are very good at spotting potential prey from
a long distance, why?
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7. What are female elephants called?
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8. True or false? Bats are mammals.
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9. Bees are found on every continent of earth except
for one, which is it?
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10. True or false? Cats spend an average of 13 to 14
hours a day sleeping.
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11. What is the fastest land animal in the world?
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12. A ‘doe’ is what kind of animal?
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13. True or false? Cougar’s are herbivores.
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14. Groups of lions are known as what?
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15. Is a dolphin a mammal?
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16. What is the largest land animal in the world?
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17. True of false? Snakes have slimy skin.
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18. What is the only continent on earth where Giraffes
live in the wild?
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19. How many pairs of wings does a bee have?
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20. What type of animal is the largest primate in the
world?
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21. Is a shark a fish or a mammal?
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22. What is the most recognizable feature of a
hedgehog’s appearance?
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23. True or false? Owls are far-sighted, meaning that
anything within a few inches of their eyes can’t be seen properly.
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24. What is the name of an adult female horse?
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25. What are baby goats called?
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26. What is the tallest animal in the world?
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27. True or false? Rabbits are born blind.
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28. What is the most recognizable physical feature of
the male lion?
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29. How many legs does a spider have?
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30. The crocodile species is believed to have been
around for how long? 2 million years or 200 million years?
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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.
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.
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