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So, you are wondering what is happening in pot 2. You've put in water. You've put in fertilizers and nutrients. But, why is this plant not growing? Do you know what the reason could be? Let me explain it to you. It depends upon the soil in the pot. Did you know that the growth of plants depends upon four things? Okay. Don't Worry. Let me tell you. They are the amount of sunlight, availability of water, availability of air, and, the amount of nutrients. So, now you know four important requirements for plants to grow. But, do you know soil is also responsible for points 2, 3 and 4. Okay, so, let's learn why soil plays a very important role for plant growth. Or, how and why the plant in pot 1 is growing and the plant in pot 2 is not growing, is linked to the soil in the pots? So, there are two different types of soil in these two pots. The soil in pot 1 is good for plant growth, and, the soil in pot 2 is not good for plant growth. The soil in pot 1 helps plants to get water nutrients and air. But, in pot 2, the soil is not good for these three things. But, let me first explain the different types of soils. Do you know different types of soils? Okay. There are three types of soils. Clay, Sandy, and Loam. You see these three jars. All of these jars have different types of soils. Let us learn about these three types. The first one is clay. The soil particles are very small and very close to each other. There is some space in between particles, and, it can hold a lot of water, but, very little air. Let's put some water in each jar. Now, take soil from jar no. 1 into your hand. Grab it in your hand tightly. Now, open your hand. See how the clay soil holds itself tightly and doesn't break. So, it is tightly packed and holds the water. Now, see jar 2. It is sandy soil. It's particles are bigger in size and further away from each other. There is a lot of space among particles. Water passes through these pores, and does not stay in the soil for very long. Now, take some soil in your hand from this jar. Try to form a ball. Now, open your hand. See. It crumbles. It does not hold any water. So, for plants it is not good. In deserts, very few plants are able to grow due to this reason. Now, this soil in jar no. 3 is Loam soil. It is a mixture of sand and clay soil. It is best for plants, as it holds water, air and nutrients very well. Now, try to make a ball from this soil. It crumbles, but, it still hold together. So, now you understand three types of soils. So, you're going to www.makemegenius.com, for science videos. It also has lots of interesting facts and powerpoint presentations for children.

Video Details

Duration: 4 minutes and 9 seconds
Country:
Language: English
License: Dotsub - Standard License
Genre: None
Views: 9
Posted by: pgtranscribes on Apr 4, 2015

3.Topic-1_Video-1

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