Here are a couple videos I use when teaching cause and effect in my class.  

The first video I use to teach the general concept of cause and effect: Cause and Effect for Kids | Cause and effect video with guided stories, worksheets, and activities.  Before the video starts, students are instructed to write down 10 examples of cause and effect as they watch the video.  (There are much more than 10 examples, but students only need to find 10.)  Then, after the video finishes, students compare answers in groups, and each group writes down 10 examples on the whiteboard.

The second video, Cause and Effect | English For Kids | Mind blooming, I use to teach the useful language for cause and effect.  Students are instructed to watch the video and write down the useful language for cause and effect sentences.

In my class, I used this to supplement Unit 5 Vocabulary Skill: Cause and Effect Collocations p.140-142 from textbook Q: Skills for Success: Reading and Writing 4.