gonoodle is a great website to get your body moving! Go to channels and you can pick a variety of activities and dances! Some of the popular channels are:
Koo Koo Kangaroo
If you don't have your own username and password, you can use mine:
Cosmickids is a great website that makes stretching fun! These exercises will increase flexibility, muscular strength, breathing and stamina.
This is a free website that tells a story while children perform various yoga exercises.
brainpopjr. is a great health website for grades kindergraten to 4th grade. Students can watch videos for various topics such as hygiene, fitness, senses, muscular, skeletal, digestive and dental health.