PrimeWire

You can now watch the entire Maddie's Do You Know? Season 4 Episode 4 movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

Maddie finds out how we use our bodies to keep a hula hoop up in the air with something called centripetal force, as well as heading to a tent factory to find out how tents are made from nylon