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Thursday, 12 March 2020

Natural Science 12th March

COMBUSTION

Watch these 3 videos about combustion. I have ordered them from the easiest to the most difficult. 




Send me a comment if you have any questions about combustion. I will answer in the comment section so we can all learn from each other! 


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24 comments:

  1. unknown12 March 2020 at 12:08

    Y.A.C.C.
    teacher I don't understand about combustion in cars, and what I don't understand is everything about combustion in cars, but I do understand what else.

    ReplyDelete
    Replies
    1. Violet12 March 2020 at 13:22

      OK don't worry! Combustion in cars is just an example of combustion. This is what you need to understand:
      COMBUSTION IS A CHEMICAL REACTION (THE FUEL REACTS TO THE OXYGEN IN THE AIR AND IT BURNS). CARS USE COMBUSTION IN THEIR ENGINES (TO MAKE THE CAR MOVE).

      CORRECTION
      *I do understand everything else

      Delete
  2. Anonymous12 March 2020 at 12:23

    How does the intake valve Work? A.S.L

    ReplyDelete
    Replies
    1. Violet12 March 2020 at 13:16

      Interesting question! The intake valve is a part of the engine. It opens to let the fuel-air mixture enter the cylinder. Combustion will happen when this mixture comes into contact with the flame (mini-explosion!). We could say the intake valve is like a DOOR.

      Delete
  3. A.C.A12 March 2020 at 13:30

    What consequence have combustion un de enviroment? And ther os something that replace the combustión?

    ReplyDelete
    Replies
    1. Violet12 March 2020 at 14:02

      Wow! Such detailed questions! Well, when combustion happens in cars, CARBON DIOXIDE is released into the atmosphere. This increases pollution and contributes to global warming. In the future, maybe ELECTRIC CARS could be a partial solution!

      CORRECTIONS
      *What consequences DOES combustion have IN the environment?
      *And IS there something TO replace combustion?

      Delete
  4. Anonymous12 March 2020 at 17:36

    In the 3rd video I don´t understand the process of iron explosion.

    S.C.C

    ReplyDelete
    Replies
    1. Violet12 March 2020 at 18:01

      Let me simplify it: the key is the OXYGEN. When the electrically charged iron is exposed to the oxygen, it causes an explosion. The more oxygen (the transparent tank is full of oxygen) the bigger the explosion.

      Delete
  5. Unknown12 March 2020 at 20:02

    A.A.G
    What produce the fire of the pistons?

    ReplyDelete
    Replies
    1. Violet13 March 2020 at 10:48

      Well, in the piston there is a combination of AIR and FUEL. When the SPARK PLUG is ignited (turned on), it causes an explosion. In other words:

      AIR + FUEL + FLAME = EXPLOSION (CHEMICAL REACTION)

      CORRECTION
      *What produces

      Delete
    2. ATY13 March 2020 at 11:38

      ATY THESE VIDEOS ARE VERY GOOD!!!!

      Delete
  6. Unknown13 March 2020 at 11:05

    BTP. I don't understand the part of the "pistones"

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    Replies
    1. Violet13 March 2020 at 13:57

      Well, in the piston there is a combination of AIR and FUEL. When the SPARK PLUG is ignited (turned on), it causes an explosion. In other words:

      AIR + FUEL + FLAME = EXPLOSION (CHEMICAL REACTION)

      Delete
    2. H.M.G.14 March 2020 at 12:09

      Can you tell me another example of explosion in other industries???

      Delete
    3. Violet14 March 2020 at 13:06

      Of course! Combustion is used in maaaaany industries. Check these links:
      1) Combustion in aeronautics: https://ids.si.edu/ids/deliveryService?max_w=300&id=https://airandspace.si.edu/webimages/previews/94-202-8p.jpg
      2) Combustion in cooking: https://f1.pngfuel.com/png/156/978/393/fire-flame-gas-stove-natural-gas-combustion-kitchen-hearth-fuel-gas-cooking-ranges-png-clip-art.png
      3) Combustion in home heating: https://mobilehomeliving.org/wp-content/uploads/2018/mobile-home-gas-furnace-w-labels-1.jpg

      Delete
    4. H.M.G.16 March 2020 at 13:20

      Thank you so much!!

      Delete
  7. Unknown13 March 2020 at 18:05

    IAR
    I LIKED THE VIDEOS!!!

    ReplyDelete
  8. A.R.G15 March 2020 at 19:25

    Hello! I don't understand very well, you can explain me

    ReplyDelete
    Replies
    1. Violet16 March 2020 at 11:25

      What don't you understand? You need to be more specific.

      Delete
  9. H.B.C16 March 2020 at 16:29

    I understand all.

    ReplyDelete
  10. H.S.M.17 March 2020 at 15:01

    I understant all.

    H.S.M

    ReplyDelete
  11. Unknown17 March 2020 at 18:39

    A.B.N I understant all and I like the videos

    ReplyDelete
  12. Carlaselles.blogspot.com17 March 2020 at 20:41

    I understand it 80% the thing of the pistones I dont understand it
    CSd

    ReplyDelete
  13. Anonymous18 March 2020 at 19:53

    the videos have helped me to understand better the combustión. I.C.A

    ReplyDelete

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