{"id":1171,"date":"2021-10-09T00:48:50","date_gmt":"2021-10-09T00:48:50","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=1171"},"modified":"2021-10-14T22:12:07","modified_gmt":"2021-10-14T15:12:07","slug":"su-nhiem-dien-do-co-xat-la-gi-kien-thuc-vat-ly-7-hay-nhat","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/su-nhiem-dien-do-co-xat-la-gi-kien-thuc-vat-ly-7-hay-nhat\/","title":{"rendered":"S\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t l\u00e0 g\u00ec? Ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd 7 hay nh\u1ea5t"},"content":{"rendered":"\n

Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n

Nh\u1eafc \u0111\u1ebfn ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd 7, kh\u00f4ng kh\u00f3 \u0111\u1ec3 ngh\u0129 \u0111\u1ebfn m\u1ed9t b\u00e0i h\u1ecdc c\u1ef1c k\u1ef3 quen thu\u1ed9c. B\u1ea5t c\u1ee9 em h\u1ecdc sinh<\/a> n\u00e0o khi \u0111\u01b0\u1ee3c h\u1ecdc kh\u1ed1i ki\u1ebfn th\u1ee9c n\u00e0y \u0111\u1ec1u c\u1ea3m th\u1ea5y v\u00f4 c\u00f9ng h\u00e0o h\u1ee9ng v\u00e0 m\u1edbi m\u1ebb. \u0110\u00f3 ch\u00ednh l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t. Nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y xu\u1ea5t hi\u1ec7n c\u1ef1c k\u1ef3 nhi\u1ec1u trong \u0111\u1eddi s\u1ed1ng th\u01b0\u1eddng nh\u1eadt. B\u1edfi th\u1ebf, \u0111\u1ec3 gi\u1ea3i th\u00edch hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t l\u00e0 vi\u1ec7c c\u1ef1c k\u1ef3 c\u1ea7n thi\u1ebft. N\u1ebfu nh\u01b0 b\u1ea1n quan t\u00e2m v\u1ec1 nh\u1eefng chia s\u1ebb n\u00e0y, c\u00f9ng \u0111\u1ecdc ti\u1ebfp v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft nh\u00e9. Tin r\u1eb1ng b\u00e0i h\u1ecdc m\u00e0 ch\u00fang t\u00f4i \u0111\u01b0a t\u1edbi s\u1ebd khi\u1ebfn cho b\u1ea1n c\u1ea3m th\u1ea5y th\u00fa v\u1ecb, c\u00f9ng b\u1eaft \u0111\u1ea7u th\u00f4i.<\/p>\n\n\n\n

Th\u00ed nghi\u1ec7m s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t<\/p>\n\n\n\n

T\u1eeb \u0111\u00e2u m\u00e0 c\u00e1c em quan t\u00e2m s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t?<\/p>\n\n\n\n

Tr\u00ean th\u1ef1c t\u1ebf, kh\u00f4ng kh\u00f3 \u0111\u1ec3 g\u1eb7p \u0111\u01b0\u1ee3c nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n khi c\u1ecd x\u00e1t. \u0110\u1ed1i v\u1edbi c\u00e1c em h\u1ecdc sinh<\/a> kh\u1ed1i l\u1edbp 7, kh\u1ea3 n\u0103ng quan s\u00e1t s\u1ef1 v\u1eadt, hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e3 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh ch\u1eb7t ch\u1ebd. C\u00e1c em c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y r\u1eb1ng, c\u00f3 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p v\u00f4 c\u00f9ng \u0111\u1eb7c bi\u1ec7t. V\u00ed d\u1ee5 v\u00e0o m\u00f9a \u0111\u00f4ng, khi \u0111\u01b0a tay l\u00ean s\u1edd t\u00f3c, th\u1ec9nh tho\u1ea3ng c\u00f3 c\u1ea3m gi\u00e1c b\u1ecb gi\u1eadt nh\u00e8 nh\u1eb9. Ho\u1eb7c khi c\u1ecd x\u00e1t qu\u1ea7n \u00e1o v\u1edbi da c\u1ee7a m\u00ecnh, c\u00e1c em c\u0169ng c\u1ea3m th\u1ea5y h\u01a1i nh\u00f3i m\u1ed9t ch\u00fat. \u0110\u00f3 ch\u00ednh l\u00e0 s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t.<\/p>\n\n\n\n

Ngo\u00e0i ra, s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n \u1edf tr\u00ean t\u00f3c c\u1ee7a c\u00e1c em. Nh\u1eefng m\u00e1i t\u00f3c n\u00e0o m\u00e0 c\u00f3 s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t, ch\u00fang s\u1ebd h\u00fat \u0111\u01b0\u1ee3c nh\u1eefng v\u1eadt nh\u1ecf kh\u00e1c. C\u00f3 th\u1ec3 \u0111\u00f3 l\u00e0 m\u1ed9t qu\u1ea3 b\u00f3ng bay, ho\u1eb7c nh\u1eefng v\u1ee5n gi\u1ea5y nh\u1ecf. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap c\u00e1c em h\u1ecdc sinh<\/a> c\u1ea3m th\u1ea5y th\u00edch th\u00fa h\u01a1n khi t\u00ecm hi\u1ec3u v\u1ec1 th\u1ebf gi\u1edbi v\u1eadt l\u00fd k\u1ef3 th\u00fa. T\u1eeb \u0111\u00f3 m\u1edf ra cho c\u00e1c em nh\u1eefng ch\u00e2n tr\u1eddi m\u1edbi v\u1ec1 ngu\u1ed3n ki\u1ebfn th\u1ee9c th\u00fa v\u1ecb.<\/p>\n\n\n\n

Th\u00ed nghi\u1ec7m v\u1ec1 s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 th\u00ed nghi\u1ec7m s\u1eed d\u1ee5ng cho c\u00e1c em h\u1ecdc sinh<\/a> hi\u1ec3u h\u01a1n v\u1ec1 .s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t. \u0110\u00e0i ti\u00ean, c\u00e1c em \u0111\u01b0a \u0111\u1ea7u th\u01b0\u1edbc nh\u1ef1a l\u00ean tr\u00ean c\u00e1c v\u1ee5n gi\u1ea5y vi\u1ebft. Ngo\u00e0i ra c\u00e1c em c\u00f3 th\u1ec3 ch\u1ecdn th\u1eed nghi\u1ec7m v\u1edbi nh\u1eefng m\u00f3n \u0111\u1ed3 kh\u00e1c. V\u00ed d\u1ee5 nh\u01b0 v\u1ee5n nilon ho\u1eb7c l\u00e0 qu\u1ea3 c\u1ea7u nh\u1ef1a x\u1ed1p \u0111\u1ec1u \u0111\u01b0\u1ee3c. C\u00e1c em s\u1ebd th\u1ea5y r\u1eb1ng nh\u1eefng m\u00f3n \u0111\u1ed3 \u0111\u1ea5y s\u1ebd kh\u00f4ng di chuy\u1ec3n g\u00ec nhi\u1ec1u.<\/p>\n\n\n\n

Chuy\u1ec3n sang b\u01b0\u1edbc 2. C\u00e1c em h\u1ecdc sinh<\/a> d\u00f9ng m\u1ed9t mi\u1ebfng v\u1ea3i kh\u00f4 \u0111\u1ec3 c\u1ecd x\u00e1t v\u00e0o \u0111\u1ea7u th\u01b0\u1edbc nh\u1ef1a. \u0110\u00f3 c\u00f3 th\u1ec3 l\u00e0 v\u1ea3i l\u1ee5a, v\u1ea3i len\u2026 t\u00f9y v\u00e0o l\u1ef1a ch\u1ecdn c\u1ee7a c\u00e1c em h\u1ecdc sinh<\/a>. Sau khi \u0111\u00e3 c\u1ecd x\u00e1t \u0111\u01b0\u1ee3c v\u00e0i l\u1ea7n, c\u00e1c em \u0111\u01b0a th\u01b0\u1edbc l\u1ea1i g\u1ea7n c\u00e1c v\u1ee5n gi\u1ea5y v\u1eeba r\u1ed3i. Ghi nh\u1edb l\u00e0 \u0111\u01b0a \u0111\u1ea7u \u0111\u00e3 c\u1ecd x\u00e1t v\u00e0o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00fang nh\u1ea5t nh\u00e9.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 c\u1ee7a th\u00ed nghi\u1ec7m ra sao?<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 c\u1ee7a th\u00ed nghi\u1ec7m s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t \u0111\u00e3 c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t so v\u1edbi v\u1eeba r\u1ed3i. Th\u01b0\u1edbc nh\u1ef1a sau khi c\u1ecd x\u00e1t c\u00f3 kh\u1ea3 n\u0103ng h\u00fat \u0111\u01b0\u1ee3c h\u1ebft c\u00e1c v\u1eadt th\u1eed nghi\u1ec7m. T\u1eeb v\u1ee5n gi\u1ea5y vi\u1ebft, v\u1ee5n nilon ho\u1eb7c l\u00e0 qu\u1ea3 c\u1ea7u nh\u1ef1a x\u1ed1p\u2026 Ngo\u00e0i ra, s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n c\u1ee7a c\u00e1c v\u1eadt c\u0169ng l\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. N\u1ebfu cho c\u1ecd x\u00e1t thanh th\u1ee7y tinh, m\u1ea3nh phim nh\u1ef1a, m\u1ea3nh nilon\u2026 c\u0169ng cho ra k\u1ebft qu\u1ea3 t\u01b0\u01a1ng t\u1ef1.<\/p>\n\n\n\n

B\u1edfi th\u1ebf, c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u01b0a ra \u0111\u01b0\u1ee3c nh\u1eadn x\u00e9t nh\u01b0 sau. Nhi\u1ec1u v\u1eadt sau khi b\u1ecb c\u1ecd x\u00e1t s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng \u0111i h\u00fat c\u00e1c v\u1eadt kh\u00e1c.<\/p>\n\n\n\n

T\u00ednh ch\u1ea5t c\u1ee7a s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng l\u00e0m s\u00e1ng b\u00fat th\u1eed c\u1ee7a c\u00e1c v\u1eadt b\u1ecb nhi\u1ec5m \u0111i\u1ec7n<\/p>\n\n\n\n

\u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t th\u1eed nghi\u1ec7m v\u1ec1 s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t. \u0110\u1ea7u ti\u00ean, khi m\u1ea3nh phim nh\u1ef1a ch\u01b0a b\u1ecb c\u1ecd x\u00e1t, ta \u0111\u1eb7t b\u00ean c\u1ea1nh m\u1ea3nh t\u00f4n ph\u1eb3ng, ch\u1ea1m th\u1eed ch\u00fang v\u00e0o b\u00fat th\u1eed \u0111i\u1ec7n. Khi \u0111\u00f3 s\u1ebd th\u1ea5y r\u1eb1ng b\u00fat th\u1eed \u0111i\u1ec7n kh\u00f4ng b\u1ecb ph\u00e1t s\u00e1ng.<\/p>\n\n\n\n

\u0110\u1ebfn b\u01b0\u1edbc hai, ta d\u00f9ng m\u1ea3nh len ch\u00e0 x\u00e1t m\u1ea3nh phim nh\u1ef1a nhi\u1ec1u l\u1ea7n. Sau \u0111\u00f3 ta \u0111\u1eb7t m\u1ea3nh phim nh\u1ef1a v\u00e0o b\u00ean c\u1ea1nh m\u1ea3nh t\u00f4n. Ch\u1ea1m b\u00fat th\u1eed \u0111i\u1ec7n v\u00e0o m\u1ea3nh t\u00f4n v\u00e0 quan s\u00e1t k\u1ebft qu\u1ea3. C\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y r\u1eb1ng b\u00fat th\u1eed \u0111i\u1ec7n \u0111\u00e3 ph\u00e1t s\u00e1ng.<\/p>\n\n\n\n

T\u1eeb \u0111\u00f3 \u0111\u01b0a ra k\u1ebft lu\u1eadn r\u1eb1ng, nhi\u1ec1u v\u1eadt sau khi b\u1ecb c\u1ecd x\u00e1t c\u00f3 th\u1ec3 l\u00e0m s\u00e1ng b\u00f3ng th\u1eed \u0111i\u1ec7n. \u0110\u00e2y l\u00e0 m\u1ed9t th\u00ed nghi\u1ec7m kh\u00e1 \u0111\u01a1n gi\u1ea3n. N\u1ebfu c\u00e1c em h\u1ecdc sinh<\/a> kh\u00f4ng c\u00f3 th\u1eddi gian \u0111\u1ec3 th\u1ef1c hi\u1ec7n tr\u00ean l\u1edbp, c\u00e1c em c\u00f3 th\u1ec3 t\u1ef1 th\u1ef1c hi\u1ec7n t\u1ea1i nh\u00e0 d\u01b0\u1edbi s\u1ef1 h\u01b0\u1edbng d\u1eabn c\u1ee7a ph\u1ee5 huynh.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn v\u1ec1 s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t<\/p>\n\n\n\n

Sau nh\u1eefng th\u00ed nghi\u1ec7m v\u1ec1 s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t, c\u00f3 th\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c s\u1ef1 nh\u1eadn x\u00e9t nh\u01b0 sau. Ta c\u00f3 th\u1ec3 l\u00e0m nhi\u1ec5m \u0111i\u1ec7n nhi\u1ec1u v\u1eadt kh\u00e1c nhau b\u1eb1ng c\u00e1ch c\u1ecd x\u00e1t ch\u00fang. Ngo\u00e0i ra, c\u00e1c v\u1eadt b\u1ecb c\u1ecd x\u00e1t s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng h\u00fat c\u00e1c v\u1eadt kh\u00e1c. Ngo\u00e0i ra, ch\u00fang c\u00f2n c\u00f3 th\u1ec3 l\u00e0m cho b\u00f3ng \u0111\u00e8n c\u1ee7a b\u00fat th\u1eed \u0111i\u1ec7n ph\u00e1t s\u00e1ng. Th\u1ebf n\u00ean, ta g\u1ecdi c\u00e1c v\u1eadt \u0111\u00f3 l\u00e0 c\u00e1c v\u1eadt nhi\u1ec5m \u0111i\u1ec7n ho\u1eb7c l\u00e0 c\u00e1c v\u1eadt mang \u0111i\u1ec7n t\u00edch.<\/p>\n\n\n\n

C\u00e1ch l\u00e0m b\u00e0i t\u1eadp s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n g\u00e2y ra b\u1edfi c\u1ecd x\u00e1t<\/p>\n\n\n\n

\u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c b\u00e0i t\u1eadp n\u00e0y t\u1ed1t nh\u1ea5t, c\u00e1c em c\u1ea7n hi\u1ec3u h\u1ebft c\u00e1c kh\u00e1i ni\u1ec7m \u0111\u01b0\u1ee3c \u0111\u01b0a ra. Ngo\u00e0i ra, \u0111\u1ecdc k\u1ef9 gi\u1ea3i th\u00edch s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n c\u1ecd x\u00e1t \u0111\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 b\u1ea3n ch\u1ea5t c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y. Sau \u0111\u00f3, c\u00e1c em b\u1eaft tay v\u00e0o l\u00e0m b\u00e0i t\u1eadp r\u1ed3i \u0111\u1ed1i chi\u1ebfu k\u1ebft qu\u1ea3. \u0110\u1eebng qu\u00ean v\u1ebd cho m\u00ecnh m\u1ed9t s\u01a1 \u0111\u1ed3 t\u01b0 duy c\u1ee7a ri\u00eang b\u00e0i h\u1ecdc n\u00e0y \u0111\u1ec3 h\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c m\u1ea1ch l\u1ea1c v\u00e0 r\u00f5 r\u00e0ng b\u1eadc nh\u1ea5t nh\u00e9.<\/p>\n\n\n\n

Tr\u1ea3i nghi\u1ec7m s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t<\/p>\n\n\n\n

B\u00e0i t\u1eadp s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n c\u1ecd x\u00e1t<\/p>\n\n\n\n

B\u00e0i t\u1eadp t\u1ef1 lu\u1eadn<\/p>\n\n\n\n

B\u00e0i 1: Ta s\u1eed d\u1ee5ng m\u1ea3nh v\u1ea3i kh\u00f4 \u0111\u1ec3 c\u1ecd x\u00e1t l\u1ea7n l\u01b0\u1ee3t t\u1eebng v\u1eadt nh\u01b0 sau: b\u00fat bi v\u1ecf nh\u1ef1a, l\u01b0\u1ee1i k\u00e9o c\u1eaft gi\u1ea5y, l\u01b0\u1ee3c nh\u1ef1a, b\u00fat ch\u00ec v\u1ecf g\u1ed7. Ta \u0111\u01b0a t\u1eebng v\u1eadt \u0111\u00f3 l\u1ea1i g\u1ea7n c\u00e1c v\u1ee5n gi\u1ea5y. V\u1eadt n\u00e0o c\u00f3 th\u1ec3 b\u1ecb nhi\u1ec5m \u0111i\u1ec7n? V\u1eadt n\u00e0o kh\u00f4ng b\u1ecb nhi\u1ec5m \u0111i\u1ec7n?<\/p>\n\n\n\n

B\u00e0i 2: T\u1ea1i c\u00e1c nh\u00e0 m\u00e1y d\u1ec7t hi\u1ec7n nay th\u01b0\u1eddng c\u00f3 nh\u1eefng b\u1ed9 ph\u1eadn chuy\u00ean ch\u1ea3i s\u1ee3i v\u1ea3i. \u1ede nh\u1eefng \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng, s\u1ee3i v\u1ea3i n\u00e0y s\u1ebd d\u1ec5 b\u1ecb ch\u1eadp v\u00e0o nhau v\u00e0 g\u00e2y r\u1ed1i. T\u1ea1i sao l\u1ea1i nh\u01b0 v\u1eady? Ta ph\u1ea3i s\u1eed d\u1ee5ng bi\u1ec7n ph\u00e1p g\u00ec \u0111\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c hi\u1ec7n t\u01b0\u1ee3ng g\u00e2y b\u1ea5t l\u1ee3i n\u00e0y?<\/p>\n\n\n\n

B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m<\/p>\n\n\n\n

B\u00e0i 1: S\u1ef1 nhi\u1ec5m \u0111i\u1ec7n li\u00ean quan \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng n\u00e0o d\u01b0\u1edbi \u0111\u00e2y?<\/p>\n\n\n\n

A Gi\u1ea5y th\u1ea5m h\u00fat h\u1ebft m\u1ef1c<\/p>\n\n\n\n

B Hi\u1ec7n t\u01b0\u1ee3ng s\u1ea5m, s\u00e9t khi tr\u1eddi \u0111\u1ed5 m\u01b0a<\/p>\n\n\n\n

C Tr\u00e1i \u0111\u1ea5t h\u00fat h\u1ebft c\u00e1c v\u1eadt \u1edf g\u1ea7n n\u00f3<\/p>\n\n\n\n

D Thanh nam ch\u00e2m c\u00f3 kh\u1ea3 n\u0103ng h\u00fat \u0111\u01b0\u1ee3c m\u1ed9t v\u1eadt b\u1eb1ng s\u1eaft<\/p>\n\n\n\n

B\u00e0i 2: Qua b\u00e0i h\u1ecdc s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t, t\u00ecm k\u1ebft lu\u1eadn \u0111\u00fang nh\u1ea5t trong c\u00e1c k\u1ebft lu\u1eadn sau \u0111\u00e2y:<\/p>\n\n\n\n

A V\u1eadt nhi\u1ec5m \u0111i\u1ec7n s\u1ebd v\u1eeba \u0111\u1ea9y, v\u1eeba h\u00fat c\u00e1c v\u1eadt kh\u00e1c<\/p>\n\n\n\n

B V\u1eadt nhi\u1ec5m \u0111i\u1ec7n th\u00ec kh\u00f4ng \u0111\u1ea9y, kh\u00f4ng h\u00fat c\u00e1c v\u1eadt kh\u00e1c<\/p>\n\n\n\n

C V\u1eadt nhi\u1ec5m \u0111i\u1ec7n s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng h\u00fat \u0111\u01b0\u1ee3c c\u00e1c v\u1eadt kh\u00e1c<\/p>\n\n\n\n

D V\u1eadt nhi\u1ec5m \u0111i\u1ec7n s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea9y c\u00e1c v\u1eadt kh\u00e1c<\/p>\n\n\n\n

L\u1eddi gi\u1ea3i b\u00e0i t\u1eadp s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t<\/p>\n\n\n\n

B\u00e0i t\u1eadp t\u1ef1 lu\u1eadn<\/p>\n\n\n\n

B\u00e0i 1: V\u1eadt b\u1ecb nhi\u1ec5m \u0111i\u1ec7n l\u00e0: l\u01b0\u1ee3c nh\u1ef1a, b\u00fat bi c\u00f3 v\u1ecf nh\u1ef1a<\/p>\n\n\n\n

V\u1eadt kh\u00f4ng b\u1ecb nhi\u1ec5m \u0111i\u1ec7n l\u00e0: l\u01b0\u1ee1i k\u00e9o c\u1eaft gi\u1ea5y, b\u00fat ch\u00ec c\u00f3 v\u1ecf g\u1ed7<\/p>\n\n\n\n

B\u00e0i 2: L\u00fd gi\u1ea3i cho hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng: do c\u00e1c s\u1ee3i v\u1ea3i b\u1ecb nhi\u1ec5m \u0111i\u1ec7n trong qu\u00e1 tr\u00ecnh ch\u1ea3i g\u00e2y n\u00ean c\u1ecd x\u00e1t, th\u1ebf n\u00ean c\u00e1c s\u1ee3i v\u1ea3i s\u1ebd h\u00fat nhau v\u00e0 ch\u00fang b\u1ecb r\u1ed1i.<\/p>\n\n\n\n

Bi\u1ec7n ph\u00e1p \u0111\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y kh\u00f4ng kh\u00f3 t\u00ecm hi\u1ec3u. Ng\u01b0\u1eddi ta s\u1ebd s\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 ch\u1ea3i s\u1ee3i v\u1ea3i, \u0111\u01b0\u1ee3c l\u00e0m n\u00ean t\u1eeb v\u1eadt li\u1ec7u kh\u00f4ng g\u00e2y nhi\u1ec5m \u0111i\u1ec7n. Do \u0111\u00f3 c\u00e1c s\u1ee3i v\u1ea3i s\u1ebd kh\u00f4ng h\u00fat v\u00e0o nhau v\u00e0 b\u1ecb r\u1ed1i n\u1eefa. \u0110\u00e2y l\u00e0 c\u00e1ch \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u c\u00e1c nh\u00e0 x\u01b0\u1edfng \u00e1p d\u1ee5ng. Ch\u00fang gi\u00fap cho ng\u01b0\u1eddi c\u00f4ng nh\u00e2n l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 c\u1ea3m th\u1ea5y tho\u1ea3i m\u00e1i h\u01a1n.<\/p>\n\n\n\n

B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m<\/p>\n\n\n\n

B\u00e0i 1: B<\/p>\n\n\n\n

B\u00e0i 2: C<\/p>\n\n\n\n

Ch\u00fa m\u00e8o nhi\u1ec5m \u0111i\u1ec7n trong th\u1ef1c t\u1ebf<\/p>\n\n\n\n

Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin m\u00e0 ch\u00fang t\u00f4i mang \u0111\u1ebfn cho b\u1ea1n v\u1ec1 s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n do c\u1ecd x\u00e1t. \u0110\u00e2y l\u00e0 nh\u1eefng chia s\u1ebb c\u1ef1c k\u1ef3 th\u00fa v\u1ecb v\u00e0 b\u1ed5 \u00edch, \u0111\u1ea3m b\u1ea3o ph\u00f9 h\u1ee3p v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng ki\u1ebfn th\u1ee9c l\u1edbp 7. N\u1ebfu nh\u01b0 b\u1ea1n th\u1ea5y b\u00e0i vi\u1ebft n\u00e0y th\u00fa v\u1ecb, \u0111\u1eebng qu\u00ean gi\u1edbi thi\u1ec7u v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi xung quanh \u0111\u1ec3 c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 bi\u1ebft nhi\u1ec1u h\u01a1n n\u1eefa nh\u00e9. Website c\u1ee7a ch\u00fang t\u00f4i \u0111\u0103ng r\u1ea5t nhi\u1ec1u b\u00e0i vi\u1ebft hay v\u1ec1 ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd. H\u00e3y l\u1ef1a ch\u1ecdn m\u1ed9t b\u00e0i vi\u1ebft h\u1ee3p v\u1edbi m\u00ecnh \u0111\u1ec3 tham kh\u1ea3o ngay h\u00f4m nay<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"

Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Nh\u1eafc \u0111\u1ebfn ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd 7, kh\u00f4ng kh\u00f3 \u0111\u1ec3 ngh\u0129 \u0111\u1ebfn m\u1ed9t b\u00e0i h\u1ecdc c\u1ef1c k\u1ef3 quen thu\u1ed9c. B\u1ea5t c\u1ee9 em h\u1ecdc sinh n\u00e0o khi \u0111\u01b0\u1ee3c h\u1ecdc kh\u1ed1i ki\u1ebfn th\u1ee9c n\u00e0y \u0111\u1ec1u c\u1ea3m th\u1ea5y v\u00f4 c\u00f9ng h\u00e0o h\u1ee9ng v\u00e0 m\u1edbi m\u1ebb. \u0110\u00f3 ch\u00ednh l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng s\u1ef1 nhi\u1ec5m […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[4,7],"tags":[],"class_list":["post-1171","post","type-post","status-publish","format-standard","hentry","category-trung-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=1171"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1171\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}