Best one I found for my kids- Easy to understand, good graphics, but not foreign hard to understand accent or distracting cartoons. HAL 10/19/15. States of Matter for Kids (Solid, Liquid, Gas): Science for Children - FreeSchool - YouTube
10 Wordless Videos that Teach Problem Solving -- Speech paths are seemingly always on the hunt for materials to address problem solving - did you ever consider videos? I found 10 wordless videos that are fun and make kids think about how to fix the main characters' problems!
Another great educational song! This kids video covers 2D shapes. Circles, Squares, Triangles, Rectangles and Ovals are all shown on screen. Kids draw the shapes in the air using their arms. Also, the video shows real life examples of the shapes!