The numbers on the tennis balls are simply for your benefit - if you are playing with Prince 1 balls, and the people on the court next to you are playing with Prince 4 balls, it is easier to retrieve your tennis balls when they wander onto another tennis court.
Only if it is Not Glass...*yes you can, and you can bring full bottles on the airplane to. You just can't bring it through security
You can only bring canned food that is in a 3oz can, which few are.
Wax is not restricted. Flammable preparations that contain wax will be restricted.
A person can bring prescription drugs and equipment onto an airplane if he also carries the prescription.
The dry noodles themselves should be fine. The water to cook them with, not so much.
My son and I did this experiment as a science fair project. We put 2 tennis balls in the freezer for 1 hour. We also put 2 tennis balls in heating pad (high setting) for 1 hour. We also used 2 room temperature balls. We dropped the balls from 80" onto a tile floor and measured the height of the bouces with a measuring tape. The results were fairly dramatic. The tennis balls from the freezer bounced an average of 25 inches. The room temperature balls bounced a full 50 inches. The warm balls bounced an average of 55 inches. Obviously there was a significant difference between the bounces of cold and warm tennis balls.
You can bring a laptop and othere elctronic items onto a plane. You may also bring on liquids in a sealed ziplock bag if they are less than 3 oz. Weapons - or anything that may be used as a weapon may not be brought on. Mercury thermometers are also banned.
You're ok, as long as you don't soke them on a plane
Yes you can. Under a new law that is going to be or should be enacted, each passenger is allowed to bring one fully operational camping stove onto the airplane with them. Have you ever heard of a 'prison wallet'? under the new guidenlines, this stove must be safely stowed in your prison wallet. Must be some sort of safety enclosure.