Subtitles and vocabulary
Click the word to look it up Click the word to find further inforamtion about it
B1 sky wavelength atmosphere sun sunlight tiny
Why is the Sky Blue?
- 106 8VoiceTube posted on 2016/07/03
Video vocabulary
Click the word to look it up Click the word to find further inforamtion about it
B1 sky wavelength atmosphere sun sunlight tiny