๊ฐ€์ž… ํ›„ ์ดˆ๋Œ€ ๋งํฌ๋ฅผ ๊ณต์œ ํ•˜๋ฉด ๋™์˜์ƒ ์žฌ์ƒ ๋ฐ ์ดˆ๋Œ€ ๋ณด์ƒ์„ ๋ฐ›์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

Learn With NASA
@LearnWithNASA
We are engaging students in NASAโ€™s exciting missions, broad range of careers, and unique opportunities.
๊ฐ€์ž… January 2011
144 ํŒ”๋กœ์ž‰ ์ค‘    406.9K ํŒฌ
How do vibrations cause sound? ๐Ÿ”Š How does an airplane fly? โœˆ๏ธ What types of animals fly without making sounds? ๐Ÿฆ‰ Check out this elementary module that explores flight with an airplane adventure activity & a hands-on harmonica project to explore sound.
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