Saturday, 25 February 2012

Helping Alien Boy with Plants...

Dear 3B,
firstly GREAT JOB!
All of you did well for your Science Show & Tell and I'm SO PROUD of each and everyone for putting in so much of effort - Kudos to you!











I'm very impressed with your work - keep it up!



Now...let's think about yesterday's Science lesson...
Remember Alien Boy?
If you don't or for those who were not with us yesterday, here's Alien Boy:

Alien Boy is new to Planet Earth and he keeps hearing the word "Plant" being used but he has no idea about what it is. His planet does not have plants, so he has not seen it before.

So, I asked all of you to write some descriptions that might help Alien Boy understand and identify what a plant is.

Many of you came up with interesting descriptors such as "green living things", "can be found on land and in water" - but each time we debated about it , we realised that there are many other things that can fit this description (e.g tortoise, turtle,etc).

So, we started on a KWL on Plants.

K- What I Know
W - What I Want to know
L - What I have Learnt

Some of you shared what you knew about plants -

We then thought of categories to fit the questions and came up with :
- Characteristics of a Plant (What is a plant?)
- Parts of a Plant
- Where to find a plant?
- Function of Plants
- Function of Plant Parts

Remember - not everything here may be true...
We have to investigate further;)!

Next, we moved on to what you wanted to know about plants (W):

I'm sorry that not all of you were able to post your questions in class. So..HERE'S THE SPACE!

1. Please post your questions on plants in the comments section below, if your question has not been added in class.

2. Once your question has been posted (this includes those who have shared your question in class),
please CHOOSE TWO questions from your friends and ANSWER it.
You can research about plants on the Internet or read books about them.

Here are some links to get you started:

http://www.kathimitchell.com/plants.html ( This has a long list of weblinks!)
http://www.mbgnet.net/bioplants/

So, when you post your answers, remember to write down the question you are trying to respond to as well.

DO NOT ANSWER YOUR OWN QUESTION!

Also,  I have checked my class list and there is no one named "Anonymous" in my class - so please write your name ;).

Have fun reading up on plants and your friends' posts! See you on Monday!

Love,
Ms Priya :)

65 comments:

  1. I am Chang Jen Ning.Why all plants are not green in colour?

    ReplyDelete
    Replies
    1. Not all plants are green because:
      there are other substances besides chlorophyll (green) in the plants. If these substance overpower the green in chlorophyll, the plants will be in the color of that substance.

      Delete
    2. hi Shay,i impressed of how you explained it to Jen Ning,keep up the GOOD JOB!

      Delete
  2. Why do all plants need chlorophyll?

    ReplyDelete
    Replies
    1. plants need chlorophyll because if they don't have they will die.

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    2. Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light. - Ignatius

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  3. Does all plants need food

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  4. Lawrence Lim Zi YangSat Feb 25, 04:19:00 pm GMT+8

    I am Lawrence Lim Zi Yang,are all plants the same colour?Reply me.

    ReplyDelete
  5. Lawrence Lim Zi YangSat Feb 25, 04:24:00 pm GMT+8

    Again,do plants have chlorophyll?why?

    ReplyDelete
    Replies
    1. plants have chlorophyll because it is for their leaves to make food.

      Delete
    2. Claudia Feb26.2012 3:59PM

      plants have chlorophyll because it is a green pigment that plants make food.

      Delete
  6. Why do not all plants fruits?

    ReplyDelete
    Replies
    1. Non-flowering plants do not bear fruits. So not all plants bear fruits.

      Delete
  7. Plants

    why do plants grow on water and land?

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  8. How do water plants grow only on water without soil?

    ReplyDelete
    Replies
    1. Wen xuan
      They suck in water through their roots and knows when to stop when its full.Some plant roots grow in the soil under the water and have long stems.(e.g lilly pad etc.)

      Delete
  9. How do plants grow under water?

    The plants absorb water, nutrients, and dissolved gases through their leaves directly from the water.


    Why do plants need roots?

    Plants need roots to hold them firmly in the ground. The roots also absorb water and mineral salts from the soil.

    ReplyDelete
  10. What type of minerals do plants absorb?

    ReplyDelete
    Replies
    1. Plants absorb nitrogen,phosphorus and potassium.These are the main minerals that plants absorb.

      Delete
  11. claudia Feb 26.2012 3:40 PM
    Why do plants need sunlight?

    ReplyDelete
    Replies
    1. They need sunlight to make food.

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    2. They need sunlight to grow using photosynthesis to convert light energy into chemical energy.

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    3. Wen xuan
      To help them grow.

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    4. Plants use the sunlight to make food and to help it grow.

      Delete
  12. Claudia Feb 26.2012 3.45 PM

    What type of minerals do plants absorb?

    Plants absorb water and nutrients.

    ReplyDelete
  13. 1) Why are flowers in bright colors?

    2) Ho do non-flowering plants reproduce?

    ReplyDelete
    Replies
    1. Shay, non-flowering plants such as moss,fern etc.reproduce by spores. Some of them have spore bags and when the spore bags are due to open,the seeds will be blown away by the wind.

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    2. Shay, flowers have are in bright colours so that it (i mean the flowers) can attract bees and butterflies as the are the helpers of the flowers as they will fly from flower to flower and will spread the pollen (which will be stuck on their feet when they land on the flower) to the other flower so that the type of flower will not be extinct even though the is a storm at there where the bee or butterfly first landed and the flowers there died the type of flower which it landed there will not be extinct. In exchange for helping the flowers reproduce of their own kind so that the type of flower will not be extinct, the bee or butterfly can take as many pollen as they(I mean the bees and butterflies) want to their hive(bees)or drink as full as they want to drink(butterflies).Hope you understand!

      Delete
  14. Green plants contain chlorophyll. Do plants with red and yellow leaves have chlorophyll, since chlorophyll makes them look green?

    ReplyDelete
    Replies
    1. Yes.Red and yellow leaves have chlorophyll.They are red and yellow because they have colour pigments in addtion to chlorophyll.

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  15. How is chlorophyll made ?

    ReplyDelete
  16. How do plants give us oxygen?

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    Replies
    1. Plants break down the carbon dioxide from the air into carbon and oxygen.They release the oxygen into the air.

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    2. They take in carbon dioxide and release oxygen for us to breath and we release carbon dioxide for them to take in.

      Delete
  17. How do water plants live under water for so long?

    ReplyDelete
    Replies
    1. Wen xuan
      Only water plants live under water.

      Delete
  18. Replies
    1. Please ignore the above reply due to entry error

      Delete
  19. This is because sunlight can reach to a certain depth in water and there are also dissolve air in water.

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  20. How to plants reproduce? -Ignatius

    ReplyDelete
  21. What do plants eat? -Ignatius

    ReplyDelete
  22. Does cactus have leaves?

    ReplyDelete
    Replies
    1. Yes.The cactus'thorns are the leaves.

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    2. Thank you for your answer Yi Qian.

      Delete
  23. How does plant bare fruit ?

    ReplyDelete
  24. Ong Zhen Ying
    Do all plants have stems,do all plants have seeds?

    ReplyDelete
  25. Yaxuan: Cheryl, cactus does have leaves. Its spines are leaves. They also help to protect the cactus's soft body from being eaten by other animals

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  26. How does water lily float on water???

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  27. Yaxuan:flowers have bright colours to attract insects like bees and butterflies. They help to pollinate the flowers to become fruits and reproduce.

    ReplyDelete
  28. Yaxuan:what is the world's oldest plant?

    ReplyDelete
    Replies
    1. Yaxuan, someone planted a plant in a pot in 1801 in Vienna and it is still alive today!

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  29. Yaxuan: water lillies do not float on water. this is because they are partially submerged plants

    ReplyDelete
  30. Which part of the plant takes in oxygen?

    ReplyDelete
    Replies
    1. Edmund,the leaves takes in oxygen only in the night time
      and takes in carbondioxide in the day time

      yen shyuan

      Delete
  31. Wen xuan

    What type of plant can live the longest?

    ReplyDelete
  32. Ms Priya ,
    I just found out that one of the websides which has a long list for us to visit, four of it has error and cannot load. They are about three websides about botany. Please tell me what to do! I really want to visit those websides

    ReplyDelete