This short video goes the parts of a plant (leaves, stem, roots, and flower) and what those parts do. It's a fun way for students to review what they have learned. This could even be played every day for awhile to review, since it only takes a few seconds. Be sure to try the preview to get an idea of how the video is set up.
The video is about a minute long.
National Science Standards (Grade 3)
4CLS 1 Characteristics of Organisms
Structure and function (4CLS1.2)
This video DOES have a voiceover to read the words.