I came across this free lesson plan on TeachersPayTeachers that I thought would be a fun way to integrate ELA into science (specifically a weather unit). Most of our fourth grade teachers are teaching weather in the first nine weeks so I plan to pass it on.
Here is the authors write up of the unit - These are 25 common English idioms that have a weather connection, along with their definitions. Students first study and discuss these with classmates and the teacher using the provided discussion guide. This is followed by a set of 25 context sentences where students must use the correct idiom to demonstrate mastery. Answers provided. At the end is a list if five extension activities to take your students further in the study of idioms.
The lesson plan is easy to follow and not complicated. It is definitely something I would do in the classroom.