The amount of players in each one of these rows or categories is called the system of play or formation. For example, 4 defenders (fullbacks), 3 midfielders (halfbacks) and 3 forwards would be a 4-3-3 system of play or formation when playing with 11 players (U11 and above).
Hatching Eggs: A Step by Step Guide. Submitted by Pam from Tulsa. 1  Before putting your eggs into an incubator, plug it in and make sure the temp is holding at 99.5 - 103 degrees.  Mark eggs with a pencil or marker with an x on one side and an o on the other.
Chicken eggs have an incubation period of about 21 days and can be hatched using either a specialized incubator under carefully monitored conditions, or using a broody hen. Use these tips for hatching chicken eggs using both methods.ecide whether to use an incubator or a broody hen. You have two options once you've decided to hatch chicken eggs; you can hatch them in an incubator or hatch them under a broody hen. Both options have pros and cons that you will need to consider before proceeding.