I need an experiment

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    • #3229
      Kyle
      Participant

      Does anybody know an experiment that proves photosynthesis, or respiration in plants with not a lot of equitment? Also, does anyone know how to tell whether something is oxygen or not without any equitment?

    • #37377
      Poison
      Participant

      Telling O2 without equipment? How? At least you will need a match.

    • #37381
      mith
      Participant

      Most people use water plants as you can see bubbles, and you should read the forum rules regarding topic titles.

    • #37495
      Kyle
      Participant

      WHere are the forum rules? And what kind of plants oculd I use on short notice to get a kind of reaction described?

    • #37517
      MrMistery
      Participant

      You can use the plant called Elodea canadensis. it is the standard plant for this experiment. When i did it i use Miriophilum sp.
      The forum rules are here: http://www.biology-online.org/forumrules.php

    • #37589
      chicoguardian
      Participant

      I did that two weeks ago in a lab, 🙂 although you will need a flask with water in it for tenmprature control, then you will need some plant like Elodea attached to a glass rod right in a test tube (I think the test tube might have some other liquid.) then you whould have the elodea submerged in the liquid withing the test tube, you should have the test tube submerged within flask wich should have h2o in it. then when you have the whole experiment put together. Then, put your experiment under a 30-watt lamp and record how many bubbles come up to the surface(not the little constant tiny ones) each minute. then do the same thing under a 150-watt light bu;b. you should be able to see a difference in the amount of bubbles, and therefor, the experiment should be successful. sorry if this is so long 😉

    • #37631
      Dr.Stein
      Participant

      Ingenhousz’s photosynthesis experiment. That’s the basic one. You can modify it by adding carbondioxide, use filter, change plants etc. 🙂

    • #37646
      Poison
      Participant

      Yes you can see bubbles, but who knows for sure that it is O2? Do you have any proof? Just a gas is rising. 😉

    • #37652
      Dr.Stein
      Participant

      Did he mention an experiment to prove oxygen is produced during photosynthesis? 😕 😛

    • #37733
      Poison
      Participant
      quote :

      Also, does anyone know how to tell whether something is oxygen or not without any equitment?

      I was talking about his/her second question together with the first.

    • #37737
      MrMistery
      Participant

      Good question Ozge. very simple: wait for a high amount of gas has accumulated, then put a match there. you can even put out the match, it will catch fire again in the oxygen

    • #37746
      Poison
      Participant

      That was what I suggested on my first post. But at least you will need a match. I don’t think it is possible without ANY equipment.

    • #37765
      MrMistery
      Participant

      i don’t think you can say a match is a piece of equipment. Why? Because e have it in Romania, and we don’t have ANY equipment in our schools here

    • #37772
      Poison
      Participant

      Good hypothesis to prove a match is not an equipment. 😆 I liked it. 😀

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