In an experiment, a control is used to establish a baseline to compare the results of the main experiment to. Having a control group rules out any environmental variables, such as temperature and... In an experiment, a control is used to establish a baseline to compare the results of the main experiment to. Having a control group rules out any environmental variables, such as temperature and...
Knives, including small pocket knives, are only allowed in checked bags. Only plastic and round-tip butter knives are allowed as carry-on blades. Most bladed items are allowed in checked baggage, including scissors, razors, swords, axes, box cutters and blade tools, if they are properly wrapped or sheathed.
Delayed Baggage | Damaged Baggage | Baggage Customer Service Contacts | A few tips about Luggage. Important Travel Information. Toner and Ink Cartridges Restrictions. Due to a Transportation Security Administration mandate, toner and ink cartridges over 16 ounces are prohibited in carry-on and checked baggage.