Q&A for How to Make a Cloud in a Bottle

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  • Question
    Can the cloud rain in the bottle?
    lilly portilla
    Community Answer
    No, it will not rain. The cloud will only condensate, causing it to just turn back into water.
  • Question
    Is there a way to make it without a match?
    Community Answer
    If you do not have matches, use a lighter and a piece of paper, or an incense stick to make the smoke you need.
  • Question
    Is the cloud toxic to inhale or ingest?
    Community Answer
    method 1 : non-toxic for inhaling and ingesting method 2 (using air freshener): non-toxic for inhaling, ingesting toxic method 2 (using hairspray) : toxic for inhaling and ingesting method 3 : non-toxic for inhaling, ingesting toxic (depends on the plastic)
  • Question
    If I never let it out will the cloud stay in the jar?
    Community Answer
    No. It will disappear in five to 10 minutes as heat and water escape.
  • Question
    What happens inside the jar?
    Community Answer
    Water droplets inside the bottle react to either temperature change or the heat and pressure caused by squeezing with the droplet nuclei to condense into water droplets. These droplets are contained in the jar, so they form into clouds for a short time.
  • Question
    What is the best way to learn this?
    Community Answer
    The best way to learn the science behind this experiment is with someone who understands the background and can tell you what is happening during the the whole thing.
  • Question
    I would like to make a cloud in a fish tank that stays in cloud form instead of dissipating. Will this experiment work if I scale it up?
    Community Answer
    No. Gradually the water vapor would condensate on the glass or just settle into the fish tank water.
  • Question
    If the cloud is let out, will it float in the air?
    Community Answer
    Probably not. The cloud is more like steam, and it will mix into the air.
  • Question
    Can I die if I touch the cloud?
    Community Answer
    No.
  • Question
    Do clouds feel like fluffy marshmallows? If not, what do they feel like?
    Community Answer
    No, they really don't feel like anything. Clouds are just like fog. The only thing you feel when you pass through it is the moisture/humidity in the air.
  • Question
    Will the cloud stay trapped in the jar if I never open it?
    Community Answer
    No. It will dissipate or it will float out and mix with the air or just condense back to water.
  • Question
    Does this create thunder or lightning?
    Community Answer
    No. For that, you would need a much larger environment.
  • Question
    How long will the cloud remain?
    Community Answer
    The cloud will stay for about 10 - 20 minutes, so make the most of it while your cloud lasts.
  • Question
    Can I make a cloud anywhere?
    Community Answer
    You can only make it in a bottle or other small closed area.
  • Question
    How can I make a cloud in the natural environment?
    Community Answer
    Usually, you would make artificial clouds by using a plane/biplane, but doing so causes more problems and actually does more harm than greenhouse gasses. It is very bad for the environment and can cause dramatic climate changes towards that environment.
  • Question
    How do I make a cloud in a jar with no ice, matches, or lighter?
    Community Answer
    You can use an empty plastic water bottle that still has a couple drops of water inside. Close the cap of the bottle and twist the bottle at its center. Twist it until the middle of the bottle is only a centimeter thick. The top and bottom of the bottle should be very full with air. Keeping the bottle twisted up, unscrew the cap and watch the water vapor escape!
  • Question
    What would I use as a substitute for the rubber glove?
    Community Answer
    I guess you could use a balloon; you just have to make sure that instead of the fingers of a glove going inside the jar, the inside of the balloon is going inside the jar. You also have to make sure you can lift the inside of the balloon out of the jar.
  • Question
    Does the type of bottle, glass or plastic, matter?
    Community Answer
    Yes, you need a clear plastic bottle, a small water bottle works best. I used a green one and you could see it but it was faint, so a clear one is best. Also, a small size works best.
  • Question
    What will happen if I open the bottle before it's been 10 minutes?
    Community Answer
    This will cause the cloud to escape. The water molecules will separate and it will loose its fog-like structure.
  • Question
    What kind of glass do you have to use to make a cloud in a bottle?
    Community Answer
    You can simply use a plastic bottle. You can use a glass bottle if you want, but it is not necessary.
  • Question
    How long would the cloud last?
    Community Answer
    It will disappear in five to 10 minutes as the heat and water in the jar escape.
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