Wednesday, 7 November 2012

My Garden - Mulberry



Mulberry (桑树)
Mulberry tree (Scientifically known as Morus alba) is an easy to grow plant on the home garden. I wouldn't say it is easy to maintain as it will grow wild and become a huge tree if does not get trim every now and then. Mulberry tree itself has lots of its own functions .

The leaves - Widely use to raise silk worm. The young leaves can be dried with oven, then serve as green-tea. The mulberry is very refreshing though. Dried leaves can be collected and turn into pillow (again, not too sure about this, but a friend has tried). Lastly, I would use the old leaves by recycling them into waste and treat as fertilizer, this I had tried before.

The branches - Its the best part to breed the plant. What I meant easy was because with a little solid branch, it could easily grow into a huge Mulberry tree.

The fruits - The red ripe fruit is of course edible.
Red mulberries become dark purples, almost black when ripe and start to fall off of the tree themselves.
Like other berries, it can be used in baking cakes and pies as well as making jams and jellies. I wouldn't think it is widely use here in Malaysia market. But I do see Mulberry enzyme and drink sold in the market.

Tips:
1) Mulberries are generally free from pests, though once a while I may see small white pesticides, but its uncommon. To keep it free from pesticides, regular trimming is advisable.

2) The tree requires trimming once it pruned and harvested. Else, it will stop pruning and end up turning into a huge tree.

3) After trimming, that's when the tree continues to breed and grow with its branches. One can replant the plant just with its branches.

4) The plant needs lots of water and sunlight. Especially when it stays in a pot. If its grow on the ground, it could grow healthily.

Fact Sheets:

http://www.crfg.org/pubs/ff/mulberry.html
http://baike.baidu.com/view/128795.htm (Chinese)

Here are some nice photos to convince you...these few trees are growing in my garden.




The darker red mulberries,  the sweeter taste.




ripe mulberries...right for picking.

Red mulberries become dark purples, almost black when ripe and start to fall off of the tree themselves

Read more:
Mulberry Tree Facts | eHow.com http://www.ehow.com/facts_5553191_mulberry-tree.html#ixzz2BMGpR9iK

Friday, 19 October 2012

Peka Sains Year 5



Date
:
20-7-2012
Activity Code
:
5 /2 / 2.1 / 1
Theme
:
Investigating Materials
Topic
:
2. Acid and Alkaline
Learning Outcomes
:
4.1.1 Pupils identify acidic, alkaline and
neutral substances using litmus paper.
Aim
:
To investigate the relationship between
the type of solution and the change of
blue and red litmus paper
Apparatus
:
Solution P(mineral water), solution Q
(salt water), solution R (vinegar),
solution S (panadol solution),
solution T (toothpaste) and
solution U (lime juice)blue litmus
paper and red litmus paper,beakers
and petri dishes
Method
:
1.      Pour small amaunt of solutions given 
      in the petri dish.
2.      Taste all solutions P,Q,R,S,T and U. 
      Record your observation.
3.      Then dip a red litmus paper  in the 
      solution P and observe the colour 
      changed.
4.      Then use blue litmus paper and 
      observe the colour change.
5.      Record your finding in the table below.
6.      Repeat the above activity using solutions
      Q,R,S,T and U.

Observation
:



Solutions
Observations
Red litmus paper
Blue litmus paper
P
(Mineral water )
Does not change colour
Does not change colour
Q
(Salt)
Does not change colour
Does not change colour
R
(Vinegar)
Does not change colour
Turn to red
S
(Panadol Solution)
Turn to blue
Does not change colour
T
(Tooth paste)
Turn to blue
Does not change colour
U
(Lime juice)
Does not change colour
Turn to red

















Discussion
:

1.      Group the solutions above correctly.
Acidic
Solution R
Solution U
Alkaline
Solution S
Solution T
Neutral
Solution P
Solution Q


2.      Which solution have a same properties as a detergent?
       Solution S and T

  1. Predict how do the colour of blue  and red litmus paper changed
 if we test the lemon juice.

            Blue litmus paper will change to red and the red litmus paper
does not change its colour.

Conclusion   :     Acidic substances change the colour of blue litmus paper
to red/ Alkaline substances change the colour of red litmus paper
to blue/ Neutral substances do not change the colour of red or
blue litmus paper.