There are many options for this you could get them any of the following, but only if they are a teen who stays at home alot and is very caring and wise, this is not for someone who is barely ever home and is always at friends houses or going to parties and what not. :
-chinchilla
-guinea pig
-chinese water dragon
-painted or red ear turtle
-parrot
- and well you get the point, if you go to Petsmart's website you can click on an animal and it will tell you ideal for 14 and up 0r 12 and up stuff like that
I would recommend a dog as it makes a friendly relationship with the child.
A bunny
the best game for a tween would be fantage its a cool virtual life get it its the best
comcast.net or comcast.com
It depends on your house/yard space and your personality!
The best technology device for your tween depends on what kind of device. if you would like to get your tween is a boy and wants a portable device get him a 3DS, for younger kids. or you could get a psp, for older kids. if your tween is a girl then get her a phone and she will love you for ever, if she already has a phone then get her a ipod or ipad, which will work for any age. if you would want to get a non-portable device then get a boy a xbox360 and a girl a wii. or if you have 2 tween get a wii so the whole family can have fun at the same time.
long long hair of course
10 - 12 Is a Tween :)
A tween can be spontaneous by being themselves.
I have tried tween 80 for western blotting. It seems to work the same as tween 20 (I can't tell the difference).
Tween Brands was created in 1987.
Tween Brands ended in 2009.
tween is me im a tween and im original out there totally weird and its awesome im 11 and cant fit most pant cause im tall and thin and everything is either to grown up or to baby tween is me im a tween
if you are looking for the best pet then a hamster is the perfect pet