Cause and effect sentences/essays are concerned with why something happens (ed) (causes) and what happens as a result (effects). This is a common method of organizing and discussing ideas.
If you can put the two things into a sentence using "if.... then...", then you have the requirements for cause and effect.
For example: If you throw a ball up, then it will fall back down. In this case, throwing the ball up is the cause for it to fall down.
More examples:
go out in the rain --------> get wet
eat too much --------------> get fat
do not study ---------------> fail exam
walk fast ---------------------> catch the bus
Words and phrases that can be used when writing Cause & Effect sentences/paragraphs
so, therefore, consequently, as a result, because of