Icing
When the puck is fired the length of the ice, or is "dumped" into the opponents zone, the referee must call icing if the puck has passed two red lines and goes untouched.
A bunch a lines
To let their defenseman (or whoever is icing the puck) know that the icing call hasn't been waved off by the referee.
Hail
Coloring causes only a physical change to icing because it does not alter the chemical characteristics of the icing.
Putting icing on a cupcake is a physical change because it does not alter the chemical composition of either the cupcake or the icing. It is simply a change in the physical state or appearance of the cupcake.
physical change You are making a mixture of the icing and food coloring, which is a physical change.
The expression is 'icing on the cake' and it means that the latest event just added to the situation, but didn't significantly change it similar to icing on a cake. The icing only makes the cake better, it doesn't change the fact that there is a cake.Ê
Ice hockey players change lines during stoppages in play, such as when there is an offside, icing, or a goal scored. Coaches also signal to the players when to change lines by shouting instructions or using hand signals from the bench. Players are typically aware of their shift length and are responsible for making timely changes to keep the team fresh.
I believe they call it Frosting.
This is not a chemical change. The food colouring forms part of the mixture on the icing sugar + flavouring + water + colouring. A chemical change requires there to be a change in the nature of the ingredients eg cooking eggs.