Keep the Heat B/Thermodynamics C

[Primate]

Thank you. I guess I should have prefaced my question with, Given we don't have access to a water bath...how do we deliver water...sorry. We are looking at microwaves, coffeepots and teakettles. I'm sure our Regional competition will have a water bath to run this event, but the middle school doesn't for the Invite.

Can't you borrow a hot plate and a large container from the high school chemistry lab?

[foreverphysics]

A week before Regionals and I have NO IDEA what our thermo device is going to be. This is bad, isn't it?

[mrsteven]

A week before Regionals and I have NO IDEA what our thermo device is going to be. This is bad, isn't it?

nah its good. This is exactly how our team functions. 1 week before, make a device or ________ (insert building event). get 3rd xDD

[Primate]

A week before Regionals and I have NO IDEA what our thermo device is going to be. This is bad, isn't it?

Not as bad as you might think. Grab some 3/8" plywood, slap together a 20x20x20cm box with a lid, and stuff it chock-full of cotton balls. (Hint: glue a layer of cotton balls to your lid.) Add a hinge if you're feeling fancy (duct tape works too), create a beaker-shaped divot, and presto!

Allot about ten hours to test the thing. Obviously, you don't need to sit there, but you'll want at least ten tests to run a quick multiple regression to get you accurate within the degree.

A week before Regionals and I have NO IDEA what our thermo device is going to be. This is bad, isn't it?

nah its good. This is exactly how our team functions. 1 week before, make a device or ________ (insert building event). get 3rd xDD

Classic Science Olympiad style. (Build bottle rocket night before state competition, get first place. Take that, Murphy!)

[StrongWind]

Is ink on a preprinted label such as a cereal box allowed? Are we allowed to paint our container? Thanks!

[val_chen_11]

How many variables should I test for the graph?
i already did 100mL,125mL,150mL,175mL,200mL at 60 degrees.....and I plan to do 60,70,80,90 degrees at 150mL...
suggestions? is this too much or too little?

[harryk]

Is ink on a preprinted label such as a cereal box allowed? Are we allowed to paint our container? Thanks!

One of the chalkers should probably answer that, but I'd say that if it was preprinted on the cardboard it would be fine, but painting your device is questionable. Things like this really all depend on the given event's judge/proctor

[Primate]

Is ink on a preprinted label such as a cereal box allowed? Are we allowed to paint our container? Thanks!

One of the chalkers should probably answer that, but I'd say that if it was preprinted on the cardboard it would be fine, but painting your device is questionable. Things like this really all depend on the given event's judge/proctor

Someone actually asked about painting before. I believe the consensus was: why put your device at risk? Paint does contribute to the insulation properties of a device, if only marginally.

val_chen, you'll need to do some different volumes at each temperature to fully measure the effect of each variable.

[arod129]

So i havent even started with the device and i hav no idea what to do... :/ help?

[Primate]

So i havent even started with the device and i hav no idea what to do... :/ help?

Try looking back a page or two:

A week before Regionals and I have NO IDEA what our thermo device is going to be. This is bad, isn't it?

Not as bad as you might think. Grab some 3/8" plywood, slap together a 20x20x20cm box with a lid, and stuff it chock-full of cotton balls. (Hint: glue a layer of cotton balls to your lid.) Add a hinge if you're feeling fancy (duct tape works too), create a beaker-shaped divot, and presto!

Allot about ten hours to test the thing. Obviously, you don't need to sit there, but you'll want at least ten tests to run a quick multiple regression to get you accurate within the degree.