SciShow Kids is a YouTube channel produced by the same folks behind the massively popular SciShow. SciShow Kids offers short video lessons on a variety of topics from animals, to space, to fun science experiments that could be done with a parent or teacher.
Recently, SciShow Kids organized a playlist of videos covering topics that are frequently connected to symbols of Halloween. Those topics are bats, spiders, skeletons, and the changing colors of leaves.
In the video about bats students learn how bats use sound to find their way at night, how and why bats hang upside down, and how they rear their offspring. In the video on spiders students learn about the role of spiders in controlling flying insect populations and how spiders create webs. In the video about the human skeleton students can learn about the functions of the skeleton as well as how bones grow and heal over time. Finally, in the video on leaves students learn about the correlation between chlorophyll, sunlight, and leaf color.
All four videos are included in the playlist embedded below.