♥ Wednesday, February 25, 2009 ♥

Mr Heah didnt come, once again.

A pretty female teacher came (sorry i forgot her name) and planned to show us a DVD. However, since our projector sucks, she could just do revision with us first. We recapitulated what we have discussed last lesson, the two questions which Xinyi has already pointed out in her post. I really think the teacher is very good. She made me much clearer about what we have learnt through explaining it as a system. For example, the exist of seasons is not because the difference in distance between Earth and Sun, but the intensity of sunlight. The tilted axid of Earth causes one place to experience different sunlight intensity during different time within a year. That is quite fun!(:

She answered some other questions we asked and finish the revision. Then she decided to let us watch the show directly through her computer screen. We squeezed together and watch although not everybody could see clearly. The position I chose is just ok, so lucky I got things to write now!(: The video we watched is called The Private Live of Plants. It showed us many beautiful scenes of plants and it was that enjoyable.

The explorer brought us to a mountain, at where he found some interesting plants growing in the rocks. It a kind of algae plant which develops slowly in the rocks and then makes them look fantastic. He also found some tiny flowers struggling in between the rocks. Oh man, plants are so strong! They can even survive within such a harsh environment. Plants can adopt their growing condition no matter it is cold or hot, wet or dry. The explorer then shifted to another mountain all covered with snow. We saw some trace of plants but it seemed they have already died under the snow. However, the video used fast-foward effect and made the time fly. The snow gradually melted and we saw the leaves and stems of the plants. They turned back to live! And then sunshine came out, the plants growed further and even started to bloom. The flowers were that cute! They always faced the sun and followed its movement. And at night, they folded their petal. Then we travelled to a extremely hot and dry desert. The plants there all got their own way to deal with the weather. For example, the cactus got needle-shaped leaved to prevent excess loss of water and they got peat-trunk to store water. Another dont-know-what-it-is-called plant buried its main body deeply in the ground and just sent its transparent "window"to the surface of ground to absorb the sunlight for its photosynthesis. Sometimes, it does rain for even 20 years, but the plants could even survive and grow super fast when precipitation comes. The explorer poured a cup of water to a plant which seems have been thirsty for quite a long time. It immediately extend its leaves and stand up. Before long, we saw the flowers just came out. Since in desert, there is not much food provided for plants. Some of them learnt how to capture insects and get nutrients from them. This types of plants are normally quite beautiful and fragrant so that they can attract their preys. The last place the explorer brought us to is the hot rain forest in Mountain Roramia. We saw the mangroves growing in the water. Sometimes the tide might submerge the mangroves and them need to hold their breath until coming out of the water. It is so cool! And also, they can drop their seeds directly into the water, some of the seeds just get into the mud and grow while others are brought away by the waves and develops their generation away from their parents.

Around our Earth, climates are different according to the location. Plants in different place respond to the climate and form their specilized features. Our nature is a system and all parts of it are affecting each other.

Labels: plant video

Crapped at 5:02 AM -

2 Comments:

At March 4, 2009 at 6:27 AM, ~*Sakura*~ said…

I realised 2 things!
1. Mr Heah did not come for the previous two lessons! haha because I noticed the word again in the first sentence of this post! (Randomness)
2. Nobody is commenting! And our projector really sucks!

Oh well, haha the video was really really nice! It got me so psyched up about how plants can actually survive in such extreme conditions from the super super dry and arid desert-y places to freezing cold areas. I really admire the plants for being so smart at surviving. I think the coolest plant was the one that could self-amputate itself so it can save water by respiring less. In all, I was happy to be able to watch this documentary and I want to watch more! :DD

Tabitha
At May 29, 2009 at 9:59 AM, ZiLi said…

tabi,thanks for your 2 points:P

08IP03! (:

THE PAST

HISTORY

Credits

Post a Comment