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Uses of Metals and Non-Metals

Uses of Metals and Non Metals: BasicIntroducing Elements, Metals and Non-MetalsUses of Metals and Nonmetals in Human Life and Environment

Transcript

  • 0:3We know that both metals and nonmetals
  • 0:6
  • 0:6have so many different physical and
  • 0:9
  • 0:9chemical properties. Have you noticed one
  • 0:12
  • 0:12thing, that all these properties make
  • 0:15
  • 0:15both metals and nonmetals very useful
  • 0:18
  • 0:18for us. How? Let us first see how metals
  • 0:22
  • 0:22are useful for us.
  • 0:24
  • 0:24Iron, iron is a very important metal present
  • 0:28
  • 0:28in our body. One day when I was very sick
  • 0:32
  • 0:32the doctor reported iron deficiency in
  • 0:35
  • 0:35my body. That left me wondering where is
  • 0:38
  • 0:38iron present in my body? Can you guess
  • 0:41
  • 0:41that?
  • 0:42
  • 0:42Let me tell you Iron is present majorly in
  • 0:46
  • 0:46our blood.
  • 0:47
  • 0:47It deals with the oxygen transportation in our
  • 0:50
  • 0:50body. So is it a very important metal for
  • 0:54
  • 0:54the body?
  • 0:55
  • 0:55Yes it is. Let's come to the next use.
  • 0:58
  • 0:58Before that let me ask you a question.
  • 1:2
  • 1:2Have you heard that magnesium is found in
  • 1:4
  • 1:4plants? If yes then in what form is it found
  • 1:8
  • 1:8in plants? Magnesium is found as an important plant
  • 1:14
  • 1:14nutrient. Have you heard of the word
  • 1:17
  • 1:17chlorophyll, which makes the leaves
  • 1:22green? Magnesium is the building block of this
  • 1:25
  • 1:25chlorophyll. It has a very important role
  • 1:27
  • 1:28in the process of photosynthesis. Coming
  • 1:32
  • 1:32to the next use. There are many hard and
  • 1:36
  • 1:36heavy metals like iron and copper which
  • 1:39
  • 1:39are used to make many things around
  • 1:41
  • 1:41you like automobiles,
  • 1:43
  • 1:43machineries, trains etc. Why?
  • 1:47
  • 1:47Because they are very hard, heavy and
  • 1:51
  • 1:51strong. But do you know which metal can
  • 1:56
  • 1:56be used to make bodies of airplanes and
  • 1:58
  • 1:58satellites? They require a metal which is
  • 2:1
  • 2:1light but strong at the same time
  • 2:4
  • 2:4because airplanes and satellites have to
  • 2:8
  • 2:8fly, the metal has to be light but it
  • 2:10
  • 2:10has to be strong so that their bodies are
  • 2:12
  • 2:12built. For that the majorly use metal
  • 2:17
  • 2:17is aluminium. Aluminium is one of the
  • 2:20
  • 2:20majorly used metal to build bodies of
  • 2:23
  • 2:23aircrafts and satelites. Are you also familiar
  • 2:27
  • 2:28with the users of certain nonmetals. To
  • 2:30
  • 2:30list the uses of certain nonmetals, let me
  • 2:33
  • 2:33ask you certain riddles and I'm sure
  • 2:35
  • 2:35you'll be able to guess which nonmetal
  • 2:38
  • 2:38am I talking about.
  • 2:39
  • 2:39So the first one is, can you guess which
  • 2:43
  • 2:43nonmetal is very very essential for life
  • 2:46
  • 2:46the one every living thing is breathing
  • 2:50
  • 2:50every moment? Correct, that is oxygen.
  • 2:54
  • 2:54Oxygen is a very important non-metal for
  • 2:58
  • 2:58all the living things because we inhale
  • 3:0
  • 3:0it every moment. Coming to the second one
  • 3:4
  • 3:4you know which nonmetals are used as
  • 3:7
  • 3:7fertilizers so that we can enhance the
  • 3:10
  • 3:10plant growth? The nonmetals are nitrogen
  • 3:15
  • 3:15and hydrogen. They make up ammonia which
  • 3:18
  • 3:18is a fertilizer used to enhance plant
  • 3:22
  • 3:22growth.
  • 3:23
  • 3:23Even phosphorous is the nonmetal which
  • 3:25
  • 3:25is used as a fertilizer. Okay, here comes
  • 3:29
  • 3:29the next one. You must have heard about
  • 3:31
  • 3:31that the swimming pool water easily
  • 3:34
  • 3:34gets dirty. If you keep swimming in this dirty
  • 3:37
  • 3:37and germ containing water, you might get
  • 3:40
  • 3:40infections. So don't you think the water
  • 3:43
  • 3:43should be cleaned? Yes, you must have
  • 3:47
  • 3:47heard about that a non metal is mixed
  • 3:51
  • 3:51in water for the purification of water.
  • 3:53
  • 3:53Which nonmetal can it be?
  • 3:57
  • 3:57It is chlorine, chlorine is mixed in
  • 4:0
  • 4:0water for its purification because
  • 4:3
  • 4:3chlorine kills germs.
  • 4:6
  • 4:6Ok now guess the next nonmetal,
  • 4:10
  • 4:10One day I was cycling and I fell down I got
  • 4:13
  • 4:13scratches all over my hand. I went
  • 4:15
  • 4:15crying to my mother, she applied a
  • 4:18
  • 4:18purpled color solution all over my
  • 4:20
  • 4:20scratches. I asked her what is this
  • 4:23
  • 4:23purple solution?
  • 4:24
  • 4:24She said it is an antiseptic, that
  • 4:27
  • 4:27antiseptic had a nonmetal present inside.
  • 4:30
  • 4:30Can you guess which non metal it can be?
  • 4:33
  • 4:33But as a hint I can tell you that the
  • 4:36
  • 4:36purple color of the solution is because
  • 4:39
  • 4:39of the non metal. The nonmetal is iodine.
  • 4:43
  • 4:43Iodine is usually mixed with alcohol and
  • 4:48
  • 4:48this antiseptic is called tincture of
  • 4:50
  • 4:50iodine. Iodine has a property of killing
  • 4:54
  • 4:54microbes and so it can be used as a
  • 4:56
  • 4:56disinfectant or an antiseptic.
  • 5:0
  • 5:0Ok now can you guess the next nonmetal? We
  • 5:4
  • 5:4all love bursting crackers in marriages
  • 5:7
  • 5:7and festivals or any other celebrations.
  • 5:9
  • 5:9But have you wonder what was it present
  • 5:13
  • 5:13inside these crackers so that they make
  • 5:16
  • 5:16such loud noise and burst with such
  • 5:18
  • 5:18bright flames. The nonmetals present
  • 5:22
  • 5:22inside these crackers are sulphur and
  • 5:25
  • 5:25phosphorous. Now that you know about so
  • 5:29
  • 5:29many uses of metals and nonmetals, let
  • 5:31
  • 5:31us quickly revise them. Uses of metals
  • 5:34
  • 5:34Iron is a very important metal present in a
  • 5:37our
  • 5:37blood. Magnesium is an essential plant
  • 5:40
  • 5:40nutrient. Hard and heavy metals like iron
  • 5:44
  • 5:44and copper are used in making machineries
  • 5:46
  • 5:46automobile, trains etc.
  • 5:48
  • 5:48Aluminium which is hard
  • 5:51
  • 5:51and light is used in making airplanes
  • 5:53
  • 5:53and satellites. Uses of non metals
  • 5:57
  • 5:57Oxygen is an essential nonmetal for our
  • 6:1
  • 6:1life which all living things inhale
  • 6:4
  • 6:4during breathing. Nitrogen and hydrogen make up a
  • 6:8
  • 6:8compound called ammonia, which is used as a
  • 6:10
  • 6:10fertilizer for plant growth. Even
  • 6:13
  • 6:13phosphorus is used for the same purpose.
  • 6:16
  • 6:16Chlorine it is put in water for
  • 6:19
  • 6:19clarification as it kills germs. Iodine
  • 6:24
  • 6:24is used as an antiseptic. Sulphur and
  • 6:27
  • 6:27phosphorus are used in making crackers. So
  • 6:30
  • 6:30is it very great to know that there are
  • 6:32
  • 6:32so many metals and nonmetals all
  • 6:34
  • 6:34around us and they are so much beneficial
  • 6:36
  • 6:36for us. We use these metals and nonmetals
  • 6:39
  • 6:39in our everyday life in some way or the
  • 6:41
  • 6:41other. So why don't you list down some
  • 6:44
  • 6:44more uses of them?

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