if its hot enough they could faint
Hamsters are not meant to be out in the sun.
Put your hamster's cage in a cool place but also where it can get sun. Make sure not to put it directly in front of a window and not in a closet or under a bed. If you have cat's it's a bad idea to put it on the floor. My hamster's cage is on a shelf up high. Have fun with your new hamster!
When in the sun the balloon gets slightly bigger, when in the refrigerator the balloon shrinks.
it melts
Not much will happen if you put a glass bottle containing teaspoonful of water in it in the sun with its lid closed. It might evaporate.
The yellow leaves will turn in to green gradually when the plant is put back in the sun.
Yes.
In the sun. You could burn it.
try it.
The sun creates the gray color on the fur in winter white hamsters so if you put him/her in the basement where there is no sunlight they will turn white.
250 million Plutos would fit inside the Sun
You Don't put in near the sun. Put in under a heat lamp instead.