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.
General Hatching rules for chicken eggs. 1  Don't set fewer than six eggs. 2  Chicken eggs take twenty-one days to hatch when incubated at optimal temperature. 3  Still-air incubator temperature should be 101.5, measured at the top of the egg, while forced-air (or turbofan) incubators should keep a temperature of 99.5. Still-air incubator temperature must be higher because the non-moving air inside the incubator rests in layers, cooler at the bottom of the incubator and warmer at the top.