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Monday, 7 November 2011

THE SOLAR SYSTEM



  • The constituents of the Solar System are Mercury , Venus , Earth , Mars , Jupiter , Saturn , Uranus , Neptune , Pluto , natural satellites , meteors , comets , stars and asteroid.
  • All the planets in the Solar System orbit the Sun.
Activity:
Name these planets.
a)The furthest planet from the Sun.(                               )


b)The biggest planet in the Solar system.(                               )

c)The smallest planet in the Solar system.(                               )

d)The hottest planet in the Solar system.(                               )

e)The nearestt planet to the Sun.(                               )

f)The only planet with living things.(                               )

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Saturday, 22 October 2011

INVESTIGATING THE EARTH AND THE UNIVERSE

APPRECIATING THE PERFECT PLACEMENT OF THE PLANET EARTH IN THE SOLAR SYSTEM








  • If the Earth is too near the Sun,the temperature will rise.Water on Earth will also dry up.Living things will die because of the heat.
  • If the Earth is too far from the Sun, the remperature will drop.Water will freeze.Plants cannot make their own food and the surrouding will be very dark.
  • The Earth has oxygen and water which are very important to living things.

ACTIVITY 1: The Perfect Placement of Earth
Fill in blanks with the correct answers.

a)The Earth is the only planet with______________.

b)It has ________and _____________which anable living things to live on it.

c)Living things cannot live on ____________because it is too cold and dark.

d)Green plants need_____________to make their own food.

e)Humans and animals will die if there is no____________.


Study the picture and answer the questions.



Earth


Sun














a) What will happen if the Earth is nearer to the Sun ?

________________________________________

b)What will happen if the Earth is farther away from the Sun?

____________________________________________

c)Why is Earth suitable for living things to live?

____________________________________


Thursday, 6 October 2011

UNIT 8:Animals have specific characteristics and behaviour to protect themselves from danger specific characteristics


                                                            





TOPIC:SCIENCE YEAR FOUR
LEARNING OBJECTIVE: Animals and plants protect themselves

                         Animals protect themselves from danger






Bedbugs have bad smell to repel enemies.
                                                                                                        




 

Pangolins have hard   scales to protect themselves from enemies.










 
Chameleons have the ability to change their skin colour according to the surrounding.




















Scorpions have stings to protect themselves from enemies.










Goats have horns to  protect themselves from enemies.







Millipedes curl up to protect themselves from danger.













The special characteristics and behaviour of animal help to protect themselves from danger.


Saturday, 1 October 2011

勤劳的小兔晶晶

    

 小兔晶晶是一个勤劳又懂事的孩子。它和父母亲住在一间破旧的屋子里。虽然屋子破旧,但是它们的生活过的很开心。
     一天,兔爸爸担心的说:“唉,雨季又要来临了,家里的食物又不够吃,怎么办呢?”晶晶见爸爸非常烦恼,于是它便想了一个办法。晶晶说道:“爸爸,我们的屋旁有一块空地,不如我们用这块空地来种植一些萝卜和青菜吧!好吗?”晶晶的父母听后,都高兴地同意了,还称赞道:“晶晶,你真聪明。”
     第二天早上,兔爸爸便到菜市场去买了一些萝卜和青菜的种子回来。回到家后,兔爸爸和兔妈妈便开始在空地上播种。晶晶看见父母如此辛苦,所以也时常去帮忙和盛水给父母喝。懂事的晶晶也把家务打理得井井有条,不需父母操心。空闲时,晶晶还会到空地里去帮忙父母,如拔草、浇水和施肥。
     不久,萝卜和青菜都渐渐地发芽成长了,它们看见了都非常开心。最后,整片空地都长满了萝卜和青菜。当雨季来临时,小兔晶晶一家人再也不怕没食物吃了。
     小朋友们,这就是勤劳换来的成果。