6 Tymor
22 Pennod
Crash Course Kids - Season 35 Episode 1
Just like groups of people have major things in common, so do different materials. So how does that work? How can we group materials by their properties?
- Blwyddyn: 2018
- Gwlad:
- Genre:
- Stiwdio:
- Allweddair:
- Cyfarwyddwr: John Green, Hank Green
- Cast:
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