Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n
Trong cu\u1ed9c s\u1ed1ng, ch\u00fang ta b\u1eaft g\u1eb7p r\u1ea5t nhi\u1ec1u lo\u1ea1i ch\u1ea5t l\u1ecfng kh\u00e1c nhau. V\u1eady c\u00f3 c\u00e1ch n\u00e0o \u0111\u1ec3 \u0111\u1ecbnh l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ch\u1ea5t l\u1ecfng n\u00e0y kh\u00f4ng? C\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng s\u1ebd \u0111em \u0111\u1ebfn cho c\u00e1c em nh\u1eefng ki\u1ebfn th\u1ee9c m\u1edbi m\u1ebb v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. C\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng l\u00e0 m\u1ed9t b\u00e0i h\u1ecdc trong ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd l\u1edbp 6. B\u00e0i vi\u1ebft ng\u00e0y h\u00f4m nay, ch\u00fang t\u00f4i s\u1ebd \u0111em \u0111\u1ebfn cho c\u00e1c em nh\u1eefng ki\u1ebfn th\u1ee9c v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y v\u00e0 nh\u1eefng \u1ee9ng d\u1ee5ng trong cu\u1ed9c s\u1ed1ng nh\u00e9.<\/p>\n\n\n\n
Th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng<\/p>\n\n\n\n
Ch\u1eafc h\u1eb3n s\u1ebd c\u00f3 nhi\u1ec1u em h\u1ecdc sinh<\/a> th\u1eafc m\u1eafc th\u1ec3 t\u00edch l\u00e0 g\u00ec. Th\u1ec3 t\u00edch c\u1ee7a m\u1ed9t v\u1eadt l\u00e0 l\u01b0\u1ee3ng kh\u00f4ng gian m\u00e0 v\u1eadt \u0111\u00f3 chi\u1ebfm. Th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng l\u00e0 l\u01b0\u1ee3ng kh\u00f4ng gian m\u00e0 ch\u1ea5t l\u1ecfng \u0111\u00f3 chi\u1ebfm ph\u1ea7n. Hi\u1ec3u m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng chi\u1ebfm bao nhi\u00eau ph\u1ea7n kh\u00f4ng gian th\u1ef1c t\u1ebf. Th\u00ec \u0111\u00f3 ch\u00ednh l\u00e0 th\u1ec3 t\u00edch c\u1ee7a n\u00f3. Tuy nhi\u00ean ch\u00fang ta kh\u00f4ng th\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng b\u1eb1ng m\u1eaft th\u01b0\u1eddng. Ch\u00ednh v\u00ec v\u1eady, c\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c cho ra \u0111\u1eddi \u0111\u1ec3 \u0111\u1ecbnh l\u01b0\u1ee3ng nh\u1eefng ch\u1ea5t l\u1ecfng c\u00f3 trong cu\u1ed9c s\u1ed1ng ng\u00e0y nay.<\/p>\n\n\n\n B\u1ea3ng \u0111\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch<\/p>\n\n\n\n Ch\u00fang ta c\u00f3 th\u1ec3 c\u1ea7n d\u00f9ng \u0111\u1ebfn c\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng trong vi\u1ec7c t\u00ednh to\u00e1n th\u1ec3 t\u00edch n\u01b0\u1edbc, th\u1ec3 t\u00edch r\u01b0\u1ee3u, th\u1ec3 t\u00edch b\u1ea5t c\u1ee9 lo\u1ea1i ch\u1ea5t l\u1ecfng n\u00e0o. \u0110\u00e2y ch\u00ednh l\u00e0 \u1ee9ng d\u1ee5ng d\u1ec5 hi\u1ec3u nh\u1ea5t. Ngo\u00e0i ra, nh\u1eefng nh\u00e0 nghi\u00ean c\u1ee9u c\u00f2n th\u1ec3 d\u00f9ng th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng \u0111\u1ec3 \u00e1p d\u1ee5ng v\u00e0o c\u00e1c th\u00ed nghi\u1ec7m. \u0110\u1ed1i v\u1edbi c\u00e1c em h\u1ecdc sinh<\/a> l\u1edbp 6, \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o c\u00e1c b\u00e0i to\u00e1n, v\u1eadt l\u00fd. N\u1eafm b\u1eaft \u0111\u01b0\u1ee3c c\u00e1ch \u0111o, c\u00e1c em c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u00ednh to\u00e1n ra \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 m\u00e0 b\u00e0i y\u00eau c\u1ea7u.<\/p>\n\n\n\n \u0110\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng<\/p>\n\n\n\n \u0110\u01a1n v\u1ecb c\u1ee7a th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c quy \u01b0\u1edbc l\u00e0 l\u1eadp ph\u01b0\u01a1ng c\u1ee7a kho\u1ea3ng hay c\u00f2n \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 m\u0169 3. \u0110\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng c\u0169ng gi\u1ed1ng nh\u01b0 \u0111\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch c\u1ee7a v\u1eadt kh\u00f4ng th\u1ea5m n\u01b0\u1edbc. C\u00e1c em c\u00f3 th\u1ec3 h\u1ecdc thu\u1ed9c b\u1ea3ng \u0111\u01a1n v\u1ecb \u0111o n\u00e0y \u0111\u1ec3 \u00e1p d\u1ee5ng v\u00e0o c\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng d\u1ec5 d\u00e0ng h\u01a1n. C\u00e1ch quy \u0111\u1ed5i th\u00f4ng d\u1ee5ng gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c ch\u00fang t\u00f4i \u0111\u1ec1 c\u1eadp d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n\n\n\n 1l = 1dm3 = 1000cm3<\/p>\n\n\n\n 1m3 = 1000l = 1000000ml = 1000000cc<\/p>\n\n\n\n Ngo\u00e0i ra c\u00e1c em c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn, m\u1edf r\u1ed9ng ki\u1ebfn th\u1ee9c v\u1edbi c\u00e1c \u0111\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch kh\u00e1c. Tuy nhi\u00ean, nh\u1eefng \u0111\u01a1n v\u1ecb ch\u00fang t\u00f4i \u0111\u1ec1 c\u1eadp tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng \u0111\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t trong h\u1ecdc t\u1eadp<\/a> v\u00e0 cu\u1ed9c s\u1ed1ng. C\u00e1c em ch\u1ec9 c\u1ea7n ghi nh\u1edb nh\u1eefng \u0111\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch n\u00e0y l\u00e0 c\u00f3 th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c b\u00e0i t\u1eadp.<\/p>\n\n\n\n B\u00ecnh chia \u0111\u1ed9 d\u00f9ng \u0111\u1ec3 \u0111o th\u1ec3 t\u00edch<\/p>\n\n\n\n Trong cu\u1ed9c s\u1ed1ng h\u1eb1ng ng\u00e0y, ch\u00fang ta th\u01b0\u1eddng th\u1ea5y th\u1ec3 t\u00edch c\u1ee7a chai n\u01b0\u1edbc, th\u1ec3 t\u00edch c\u1ee7a r\u01b0\u1ee3u,\u2026 \u0110\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t trong \u0111\u1eddi s\u1ed1ng h\u1eb1ng ng\u00e0y ch\u00ednh l\u00e0 ml v\u00e0 l. Ngo\u00e0i ra \u0111\u01a1n v\u1ecb m3 c\u0169ng \u0111\u01b0\u1ee3c d\u00f9ng nhi\u1ec1u trong vi\u1ec7c \u0111o l\u01b0\u1ee3ng n\u01b0\u1edbc sinh ho\u1ea1t h\u00e0ng ng\u00e0y. C\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng v\u00e0o nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p.<\/p>\n\n\n\n Xem th\u00eam b\u1ea3ng \u0111\u01a1n v\u1ecb \u0111o \u0111\u1ed9 d\u00e0i \u2013 V\u1eadt l\u00fd 6<\/p><\/blockquote>\n\n\n\n D\u1ee5ng c\u1ee5 \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng<\/p>\n\n\n\n D\u1ee5ng c\u1ee5 \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng l\u00e0 nh\u1eefng d\u1ee5ng c\u1ee5 c\u00f3 c\u00e1c v\u1ea1ch chia, \u0111\u1ecbnh m\u1ee9c c\u00f9ng c\u00e1c con s\u1ed1 \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c dung t\u00edch ch\u1ea5t l\u1ecfng. D\u1ee5ng c\u1ee5 \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng ch\u00fang ta th\u01b0\u1eddng th\u1ea5y l\u00e0 b\u00ecnh chia \u0111\u1ed9, ca \u0111ong, can,\u2026 \u1ede ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 tr\u00ean tr\u01b0\u1eddng h\u1ecdc, d\u1ee5ng c\u1ee5 \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng ch\u00ednh l\u00e0 b\u00ecnh chia \u0111\u1ed9. K\u00edch c\u1ee1 c\u1ee7a b\u00ecnh c\u00f3 nhi\u1ec1u m\u1ee9c kh\u00e1c nhau. C\u00e1c em d\u00f9ng \u0111\u1ec3 \u0111o dung t\u00edch l\u1edbn ho\u1eb7c nh\u1ecf t\u00f9y theo y\u00eau c\u1ea7u. Vi\u1ec7c c\u1ee7a ch\u00fang ta khi s\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 n\u00e0y ch\u00ednh l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c ph\u00f9 h\u1ee3p. N\u1ebfu th\u1ec3 t\u00edch c\u1ee7a ch\u1ea5t l\u1ecfng \u0111\u00f3 l\u1edbn ch\u00fang ta c\u1ea7n ph\u1ea3i d\u00f9ng b\u00ecnh chia \u0111\u1ed9 c\u00f3 th\u1ec3 t\u00edch l\u1edbn.<\/p>\n\n\n\n C\u00e1ch \u0111o th\u1ec3 t\u00edch b\u1eb1ng b\u00ecnh chia \u0111\u1ed9<\/p>\n\n\n\n C\u00e1ch \u0111o th\u1ec3 t\u00edch nhi\u1ec1u l\u1ea7n<\/p>\n\n\n\n Ngo\u00e0i ra, ch\u00fang ta c\u00f3 th\u1ec3 chia ch\u1ea5t l\u1ecfng th\u00e0nh nhi\u1ec1u ph\u1ea7n \u0111\u1ec3 \u0111o \u0111\u01b0\u1ee3c th\u1ec3 t\u00edch. Tuy nhi\u00ean v\u1edbi c\u00e1ch l\u00e0m n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra sai s\u1ed1 nh\u1ea5t \u0111\u1ecbnh. Ch\u00fang ta n\u00ean bi\u1ebft c\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng chu\u1ea9n nh\u1ea5t \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111o chu\u1ea9n, kh\u00f4ng b\u1ecb sai s\u1ed1. B\u00ecnh chia \u0111\u1ed9 c\u00f3 c\u00e1c \u0111\u01a1n v\u1ecb \u0111o th\u1ec3 t\u00edch kh\u00e1c nhau, c\u00e1c em c\u0169ng n\u00ean \u0111\u1ec3 \u00fd \u0111\u1ebfn \u0111i\u1ec1u n\u00e0y. Tr\u00e1nh vi\u1ec7c sau khi \u0111o xong, ghi sai \u0111\u01a1n v\u1ecb th\u1ec3 t\u00edch, d\u1eabn \u0111\u1ebfn sai k\u1ebft qu\u1ea3. T\u1ea5t c\u1ea3 nh\u1eefng th\u00ed nghi\u1ec7m \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng t\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m, \u0111\u1ec1u s\u1ebd s\u1eed d\u1ee5ng b\u00ecnh chia \u0111\u1ed9. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c, kh\u00f4ng sai s\u1ed1 qu\u00e1 nhi\u1ec1u, s\u1eed d\u1ee5ng \u0111\u00fang m\u1ee5c \u0111\u00edch.<\/p>\n\n\n\n Gi\u1edbi h\u1ea1n \u0111o c\u1ee7a d\u1ee5ng c\u1ee5 \u0111o th\u1ec3 t\u00edch ch\u00ednh l\u00e0 gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t ghi tr\u00ean v\u1ea1ch \u0111o c\u1ee7a d\u1ee5ng c\u1ee5. V\u00ed d\u1ee5 v\u1edbi c\u00f4ng c\u1ee5 \u0111o l\u00e0 can 5l th\u00ec gi\u1edbi h\u1ea1n \u0111o c\u1ee7a chi\u1ebfc can n\u00e0y ch\u00ednh l\u00e0 th\u1ec3 t\u00edch 5l. Ngo\u00e0i ra, v\u1ea1ch chia nh\u1ecf nh\u1ea5t tr\u00ean d\u1ee5ng c\u1ee5 \u0111o c\u0169ng l\u00e0 \u0111i\u1ec1u ch\u00fang ta c\u1ea7n bi\u1ebft v\u00e0 quan t\u00e2m.<\/p>\n\n\n\n Xem th\u00eam c\u00e1ch \u0111o th\u1ec3 t\u00edch v\u1eadt r\u1eafn kh\u00f4ng th\u1ea5m n\u01b0\u1edbc<\/p><\/blockquote>\n\n\n\n C\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng<\/p>\n\n\n\n C\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng ch\u00fang t\u00f4i \u0111\u1ec1 c\u1eadp \u0111\u1ebfn trong b\u00e0i vi\u1ebft n\u00e0y ch\u00ednh l\u00e0 c\u00e1ch \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 tr\u01b0\u1eddng h\u1ecdc. C\u00e1c em h\u1ecdc sinh<\/a> l\u1edbp 6 n\u00ean ghi nh\u1edb c\u00e1ch \u0111o n\u00e0y \u0111\u1ec3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n th\u00ed nghi\u1ec7m th\u1ef1c h\u00e0nh t\u1ed1t.<\/p>\n\n\n\n Can, b\u00ecnh chia \u0111\u1ed9 \u2013 c\u00e1ch \u0111o th\u1ec3 t\u00edch<\/p>\n\n\n\n B\u01b0\u1edbc 1: \u01af\u1edbc l\u01b0\u1ee3ng th\u1ec3 t\u00edch c\u1ea7n \u0111o<\/p>\n\n\n\n C\u00e1c em n\u00ean ch\u00fa \u00fd \u0111\u1ebfn b\u01b0\u1edbc n\u00e0y. N\u1ebfu th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng c\u1ea7n \u0111o kh\u00e1 l\u1edbn. Th\u00ec c\u00e1c em n\u00ean ch\u1ecdn nh\u1eefng b\u00ecnh chia \u0111\u1ed9 to \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111\u1ef1ng h\u1ebft ch\u1ea5t l\u1ecfng. Ch\u1ecdn sai b\u00ecnh chia \u0111\u1ed9 c\u00f3 th\u1ec3 khi\u1ebfn qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00e0nh \u0111o ph\u1ea3i th\u1ef1c hi\u1ec7n nhi\u1ec1u l\u1ea7n. Ch\u01b0a k\u1ec3 khi \u0111o c\u00f3 ph\u1ea7n th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 b\u1ecb v\u01a1i b\u1edbt. C\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng n\u00e0y c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n \u0111\u1ee7 c\u00e1c b\u01b0\u1edbc.<\/p>\n\n\n\n B\u01b0\u1edbc 2: Ch\u1ecdn b\u00ecnh chia \u0111\u1ed9 c\u00f3 gi\u1edbi h\u1ea1n \u0111o v\u00e0 \u0111\u1ed9 chia nh\u1ecf nh\u1ea5t ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n Gi\u1edbi h\u1ea1n \u0111o ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi th\u1ec3 t\u00edch c\u1ee7a ch\u1ea5t l\u1ecfng. C\u00e1c em c\u00f3 th\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng b\u1eb1ng m\u1eaft th\u01b0\u1eddng \u0111\u1ec3 ch\u1ecdn b\u00ecnh chia \u0111\u1ed9. Ho\u1eb7c c\u00e1c em c\u00f3 th\u1ec3 nh\u1edd c\u00f4 gi\u00e1o, th\u1ea7y gi\u00e1o \u0111\u1ec3 ch\u1ecdn ra \u0111\u01b0\u1ee3c b\u00ecnh chia \u0111\u1ed9 ph\u00f9 h\u1ee3p. \u0110\u1ed9 chia nh\u1ecf nh\u1ea5t \u0111\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c ph\u1ea7n nh\u1ecf nh\u1ea5t c\u1ee7a th\u1ec3 t\u00edch. Th\u1ebf t\u00edch th\u1ef1c c\u1ee7a ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3i m\u1ed9t con s\u1ed1 tr\u00f2n. C\u00e1c v\u1ea1ch chia nh\u1ecf c\u00f3 th\u1ec3 gi\u00fap c\u00e1c em x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c th\u1ec3 t\u00edch t\u1eeb nh\u1eefng con s\u1ed1 nh\u1ecf nh\u1ea5t.<\/p>\n\n\n\n B\u01b0\u1edbc 3: \u0110\u1eb7t b\u00ecnh chia \u0111\u1ed9 th\u1eb3ng \u0111\u1ee9ng<\/p>\n\n\n\n Khi b\u1eaft \u0111\u1ea7u ti\u1ebfn h\u00e0nh \u0111o th\u1ec3 t\u00edch, c\u00e1c em c\u1ea7n ch\u1ecdn m\u1eb7t ph\u1eb3ng n\u1eb1m ngang, kh\u00f4ng g\u1ed3 gh\u1ec1 \u0111\u1ec3 \u0111\u1eb7t b\u00ecnh chia \u0111\u1ed9. B\u00ecnh chia \u0111\u1ed9 c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u1eb3ng \u0111\u1ee9ng \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111o ch\u00ednh x\u00e1c. N\u1ebfu b\u1ecb nghi\u00eang \u0111i d\u00f9 ch\u1ec9 m\u1ed9t ch\u00fat c\u0169ng c\u00f3 th\u1ec3 \u0111em \u0111\u1ebfn k\u1ebft qu\u1ea3 \u0111o sai. Ho\u1eb7c t\u1ec7 h\u01a1n l\u00e0 kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 \u0111o th\u1ec3 t\u00edch.<\/p>\n\n\n\n B\u01b0\u1edbc 4: \u0110\u1eb7t m\u1eaft n\u1eb1m ngang v\u1edbi \u0111\u1ed9 cao m\u1ef1c ch\u1ea5t l\u1ecfng trong b\u00ecnh chia \u0111\u1ed9.<\/p>\n\n\n\n Sau khi \u0111\u00e3 chu\u1ea9n b\u1ecb d\u1ee5ng c\u1ee5 \u0111o v\u00e0 \u0111\u1eb7t l\u00ean m\u1eb7t ph\u1eb3ng c\u1ed1 \u0111\u1ecbnh. C\u00e1c em th\u1ef1c hi\u1ec7n \u0111\u1ed5 ch\u1ea5t l\u1ecfng c\u1ea7n \u0111o v\u00e0o b\u00ecnh chia \u0111\u1ed9. X\u00e1c \u0111\u1ecbnh chi\u1ec1u cao m\u1ef1c ch\u1ea5t l\u1ecfng c\u00f3 trong b\u00ecnh l\u00e0 \u0111\u1eb7t m\u1eaft n\u1eb1m ngang v\u1edbi chi\u1ec1u cao n\u00e0y. Nh\u01b0 v\u1eady, v\u1ea1ch chia \u1ee9ng v\u1edbi chi\u1ec1u cao c\u1ee7a m\u1ef1c ch\u1ea5t l\u1ecfng trong b\u00ecnh s\u1ebd l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng. C\u00e1c em c\u1ea7n ghi l\u1ea1i k\u1ebft qu\u1ea3 n\u00e0y \u0111\u1ec3 ho\u00e0n t\u1ea5t th\u1ef1c h\u00e0nh.<\/p>\n\n\n\n B\u01b0\u1edbc 5: \u0110\u1ecdc v\u00e0 ghi l\u1ea1i k\u1ebft qu\u1ea3 \u0111o theo v\u1ea1ch g\u1ea7n nh\u1ea5t v\u1edbi m\u1ef1c ch\u1ea5t l\u1ecfng c\u00f3 trong b\u00ecnh.<\/p>\n\n\n\n \u0110\u00e2y ch\u00ednh l\u00e0 c\u00e1c b\u01b0\u1edbc trong c\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng trong ph\u00f2ng th\u00ed nghi\u1ec7m. Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c em c\u00f3 th\u1ec3 thay b\u00ecnh chia \u0111\u1ed9 b\u1eb1ng can ho\u1eb7c b\u00ecnh ch\u1ee9a n\u01b0\u1edbc c\u00f3 v\u1ea1ch chia \u0111\u1ec3 \u0111o. Tuy nhi\u00ean, nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y th\u01b0\u1eddng \u00e1p d\u1ee5ng trong th\u1ef1c t\u1ebf nhi\u1ec1u h\u01a1n l\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m.<\/p>\n\n\n\n C\u00f3 th\u1ec3 n\u00f3i, c\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng kh\u00f4ng ch\u1ec9 l\u00e0 ki\u1ebfn th\u1ee9c c\u1ea7n thi\u1ebft cho c\u00e1c em \u0111ang theo h\u1ecdc l\u1edbp 6 m\u00f4n V\u1eadt l\u00fd. M\u00e0 ngay c\u1ea3 ai trong s\u1ed1 ch\u00fang ta c\u0169ng c\u1ea7n bi\u1ebft \u0111\u1ebfn ki\u1ebfn th\u1ee9c n\u00e0y. H\u00e3y nh\u1edb \u0111\u1ebfn n\u00f3 \u0111\u1ec3 \u00e1p d\u1ee5ng v\u00e0o th\u1ef1c t\u1ebf. \u0110\u00e2y \u0111\u1ec1u l\u00e0 nh\u1eefng ki\u1ebfn th\u1ee9c c\u00f3 th\u1ec3 v\u1eadn d\u1ee5ng trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y. N\u1ebfu nh\u01b0 c\u00e1c b\u1ea1n \u0111\u1ec3 \u00fd th\u00ec vi\u1ec7c \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n r\u1ea5t nhi\u1ec1u. C\u1ea3m \u01a1n c\u00e1c em \u0111\u00e3 \u0111\u00f3n \u0111\u1ecdc b\u00e0i vi\u1ebft n\u00e0y v\u00e0 thu v\u1ec1 \u0111\u01b0\u1ee3c ki\u1ebfn th\u1ee9c c\u1ea7n thi\u1ebft. Ch\u00fac c\u00e1c em c\u00f3 th\u1ec3 h\u1ecdc t\u1eadp<\/a> d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 ho\u00e0n th\u00e0nh t\u1ed1t nh\u1eefng b\u00e0i ki\u1ec3m tra, th\u1ef1c h\u00e0nh.<\/p>\n\n\n\n T\u00ecm \u0111\u1ecdc th\u00eam nh\u1eefng b\u00e0i vi\u1ebft kh\u00e1c c\u00f9ng ch\u1ee7 \u0111\u1ec1:<\/p><\/blockquote>\n\n\n\n Ph\u00e2n bi\u1ec7t s\u1ef1 s\u00f4i v\u00e0 s\u1ef1 bay h\u01a1i nh\u01b0 th\u1ebf n\u00e0o? Ki\u1ebfn th\u1ee9c l\u00fd 7 hay nh\u1ea5t<\/p>\n\n\n\n C\u00e1ch \u0111o th\u1ec3 t\u00edch v\u1eadt r\u1eafn kh\u00f4ng th\u1ea5m n\u01b0\u1edbc? V\u1eadt l\u00fd 6<\/p>\n\n\n\n Ph\u01b0<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":" Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Trong cu\u1ed9c s\u1ed1ng, ch\u00fang ta b\u1eaft g\u1eb7p r\u1ea5t nhi\u1ec1u lo\u1ea1i ch\u1ea5t l\u1ecfng kh\u00e1c nhau. V\u1eady c\u00f3 c\u00e1ch n\u00e0o \u0111\u1ec3 \u0111\u1ecbnh l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ch\u1ea5t l\u1ecfng n\u00e0y kh\u00f4ng? C\u00e1ch \u0111o th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng s\u1ebd \u0111em \u0111\u1ebfn cho c\u00e1c em nh\u1eefng ki\u1ebfn th\u1ee9c m\u1edbi m\u1ebb v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. C\u00e1ch […]<\/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":[7],"tags":[],"class_list":["post-1133","post","type-post","status-publish","format-standard","hentry","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1133","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=1133"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1133\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}