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.
1 Fishing rods are permitted as carry-on and checked baggage. 2  However, please check with your air carrier to confirm that rods meet size limitations for carry-on items. 3  Ultimately, it is the carrier's decision on whether rods and poles can be transported as carry-on baggage. 4  Fishing Tackle.