{"id":12501,"date":"2024-04-22T10:43:38","date_gmt":"2024-04-22T02:43:38","guid":{"rendered":"https:\/\/shchimay.com\/?p=12501"},"modified":"2024-04-22T13:40:17","modified_gmt":"2024-04-22T05:40:17","slug":"water-testing-kits-for-students","status":"publish","type":"post","link":"https:\/\/shchimay.com\/vi\/water-testing-kits-for-students\/","title":{"rendered":"b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc cho h\u1ecdc sinh"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_50 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/shchimay.com\/vi\/water-testing-kits-for-students\/#Loi_ich_cua_viec_su_dung_bo_dung_cu_kiem_tra_nuoc_trong_du_an_khoa_hoc_cua_sinh_vien\" title=\"L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a sinh vi\u00ean\">L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a sinh vi\u00ean<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/shchimay.com\/vi\/water-testing-kits-for-students\/#Cach_chon_bo_dung_cu_kiem_tra_nuoc_phu_hop_cho_thi_nghiem_cua_hoc_sinh\" title=\"C\u00e1ch ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc ph\u00f9 h\u1ee3p cho th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecdc sinh\">C\u00e1ch ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc ph\u00f9 h\u1ee3p cho th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecdc sinh<\/a><\/li><\/ul><\/nav><\/div>\n<h1 id=\"benefits-of-using-water-testing-kits-in-student-science-projects-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Loi_ich_cua_viec_su_dung_bo_dung_cu_kiem_tra_nuoc_trong_du_an_khoa_hoc_cua_sinh_vien\"><\/span>L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a sinh vi\u00ean<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nB\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb d\u00e0nh cho h\u1ecdc sinh th\u1ef1c hi\u1ec7n c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc li\u00ean quan \u0111\u1ebfn nghi\u00ean c\u1ee9u ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. Nh\u1eefng b\u1ed9 d\u1ee5ng c\u1ee5 n\u00e0y cung c\u1ea5p cho sinh vi\u00ean ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c th\u00f4ng s\u1ed1 kh\u00e1c nhau c\u1ee7a n\u01b0\u1edbc, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 pH, oxy h\u00f2a tan v\u00e0 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc, h\u1ecdc sinh c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf khi ti\u1ebfn h\u00e0nh c\u00e1c th\u00ed nghi\u1ec7m khoa h\u1ecdc v\u00e0 t\u00ecm hi\u1ec3u v\u1ec1 t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc trong m\u00f4i tr\u01b0\u1eddng c\u1ee7a ch\u00fang ta.<\/p>\n<p>M\u1ed9t trong nh\u1eefng l\u1ee3i \u00edch ch\u00ednh c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a h\u1ecdc sinh l\u00e0 ch\u00fang cho ph\u00e9p h\u1ecdc sinh \u0111\u1ec3 \u00e1p d\u1ee5ng ki\u1ebfn \u200b\u200bth\u1ee9c l\u1edbp h\u1ecdc c\u1ee7a m\u00ecnh v\u00e0o c\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf. B\u1eb1ng c\u00e1ch ki\u1ec3m tra c\u00e1c m\u1eabu n\u01b0\u1edbc t\u1eeb c\u00e1c v\u00f9ng n\u01b0\u1edbc \u0111\u1ecba ph\u01b0\u01a1ng, h\u1ecdc sinh c\u00f3 th\u1ec3 tr\u1ef1c ti\u1ebfp th\u1ea5y c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc nh\u01b0 th\u1ebf n\u00e0o. Tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf n\u00e0y gi\u00fap h\u1ecdc sinh ph\u00e1t tri\u1ec3n s\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc h\u01a1n v\u1ec1 c\u00e1c v\u1ea5n \u0111\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean n\u01b0\u1edbc c\u1ee7a ch\u00fang ta.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>CCT-5300<\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Kh\u00f4ng \u0111\u1ed5i<\/td>\n<td>10,00cm-1<\/td>\n<td>1.000cm-1<\/td>\n<td colspan=\"2\">0.100cm-1<\/td>\n<td>0,010cm-1<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>(500\uff5e20.000)<\/td>\n<td>(1.0\uff5e2.000)<\/td>\n<td colspan=\"2\">(0.5\uff5e200)<\/td>\n<td>(0,05\uff5e18,25)<\/td>\n<\/tr>\n<tr>\n<td>\u03bcS\/cm<\/td>\n<td>\u03bcS\/cm<\/td>\n<td colspan=\"2\">\u03bcS\/cm<\/td>\n<td>M\u03a9\u00b7cm<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">TDS<\/td>\n<td>(250\uff5e10.000)<\/td>\n<td>(0,5\uff5e1,000)<\/td>\n<td colspan=\"2\">(0,25\uff5e100)<\/td>\n<td rowspan=\"2\">\u2014\u2014<\/td>\n<\/tr>\n<tr>\n<td>ppm<\/td>\n<td>ppm<\/td>\n<td colspan=\"2\">ppm<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh.<\/td>\n<td colspan=\"5\">(0\uff5e50)\u2103\uff08Nhi\u1ec7t \u0111\u1ed9. B\u1ed3i th\u01b0\u1eddng : NTC10K\uff09<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td colspan=\"5\">\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n: 1,5% \uff08FS\uff09<\/td>\n<\/tr>\n<tr>\n<td colspan=\"5\">\u0110i\u1ec7n tr\u1edf su\u1ea5t: 2,0% \uff08FS\uff09<\/td>\n<\/tr>\n<tr>\n<td colspan=\"5\">TDS: 1,5% \uff08FS\uff09<\/td>\n<\/tr>\n<tr>\n<td colspan=\"5\">Nhi\u1ec7t \u0111\u1ed9.:\u00b10.5\u2103<\/td>\n<\/tr>\n<tr>\n<td>B\u00f9 nhi\u1ec7t \u0111\u1ed9<\/td>\n<td colspan=\"5\">(0\uff5e50)\u2103 v\u00e0 nbsp;v\u1edbi 25\u2103 l\u00e0 Ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u Ra T\u01b0\u01a1ng T\u1ef1<\/td>\n<td colspan=\"5\">B\u1ed9 ph\u00e1t\/b\u1ed9 ph\u00e1t \u0111\u01a1n c\u00e1ch ly(4\uff5e20)mA\uff0cinstrument \u0111\u1ec3 l\u1ef1a ch\u1ecdn<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u Ra \u0110i\u1ec1u Khi\u1ec3n<\/td>\n<td colspan=\"5\">R\u01a1le SPDT, Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i: AC 230V\/50A(Max)<\/td>\n<\/tr>\n<tr>\n<td>Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td colspan=\"3\">CCT-5300E : DC24V<\/td>\n<td colspan=\"2\">CCT-5320E : AC 220V\u00b115 ph\u1ea7n tr\u0103m <\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n<td colspan=\"5\">Nhi\u1ec7t \u0111\u1ed9. v\u00e0 nbsp;(0\uff5e50)\u2103\uff1b\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i v\u00e0 nbsp;\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/td>\n<td colspan=\"5\">Nhi\u1ec7t \u0111\u1ed9.(-20\uff5e60)\u2103; \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i v\u00e0 nbsp;\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc<\/td>\n<td colspan=\"5\">96mm\u00d796mm\u00d7105mm (H\u00d7W\u00d7D)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td colspan=\"5\">91mm\u00d791mm (H\u00d7W)<\/td>\n<\/tr>\n<tr>\n<td>C\u00e0i \u0111\u1eb7t<\/td>\n<td colspan=\"5\"> v\u00e0 nbsp;B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c g\u1eafn, c\u00e0i \u0111\u1eb7t nhanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>Ngo\u00e0i vi\u1ec7c cung c\u1ea5p \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m khoa h\u1ecdc, b\u1ed9 d\u1ee5ng c\u1ee5 th\u1eed n\u01b0\u1edbc c\u00f2n gi\u00fap h\u1ecdc sinh ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng quan tr\u1ecdng trong ph\u00f2ng th\u00ed nghi\u1ec7m. B\u1eb1ng c\u00e1ch l\u00e0m theo h\u01b0\u1edbng d\u1eabn \u0111i k\u00e8m v\u1edbi b\u1ed9 d\u1ee5ng c\u1ee5, h\u1ecdc sinh h\u1ecdc c\u00e1ch thu th\u1eadp v\u00e0 ph\u00e2n t\u00edch m\u1eabu n\u01b0\u1edbc, gi\u1ea3i th\u00edch k\u1ebft qu\u1ea3 v\u00e0 \u0111\u01b0a ra k\u1ebft lu\u1eadn d\u1ef1a tr\u00ean nh\u1eefng ph\u00e1t hi\u1ec7n c\u1ee7a m\u00ecnh. Nh\u1eefng k\u1ef9 n\u0103ng n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft cho sinh vi\u00ean theo \u0111u\u1ed5i s\u1ef1 nghi\u1ec7p trong c\u00e1c l\u0129nh v\u1ef1c khoa h\u1ecdc, c\u00f4ng ngh\u1ec7, k\u1ef9 thu\u1eadt v\u00e0 to\u00e1n h\u1ecdc (STEM).<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"Reverse Osmosis Controller introduction\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/Az3n9fYEmZA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>H\u01a1n n\u1eefa, vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a h\u1ecdc sinh c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y t\u00ednh t\u00f2 m\u00f2 v\u00e0 t\u00ecm t\u00f2i c\u1ee7a h\u1ecdc sinh. B\u1eb1ng c\u00e1ch khuy\u1ebfn kh\u00edch h\u1ecdc sinh \u0111\u1eb7t c\u00e2u h\u1ecfi v\u1ec1 c\u00e1c m\u1eabu n\u01b0\u1edbc m\u00e0 c\u00e1c em \u0111ang th\u1eed nghi\u1ec7m v\u00e0 kh\u00e1m ph\u00e1 c\u00e1c bi\u1ebfn s\u1ed1 kh\u00e1c nhau c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc, gi\u00e1o vi\u00ean c\u00f3 th\u1ec3 gi\u00fap h\u1ecdc sinh ph\u00e1t tri\u1ec3n k\u1ef9 n\u0103ng t\u01b0 duy ph\u1ea3n bi\u1ec7n v\u00e0 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1. Qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp d\u1ef1a tr\u00ean y\u00eau c\u1ea7u n\u00e0y c\u00f3 th\u1ec3 kh\u01a1i d\u1eady s\u1ef1 quan t\u00e2m c\u1ee7a h\u1ecdc sinh \u0111\u1ed1i v\u1edbi khoa h\u1ecdc v\u00e0 truy\u1ec1n c\u1ea3m h\u1ee9ng cho h\u1ecd theo \u0111u\u1ed5i c\u00e1c nghi\u00ean c\u1ee9u s\u00e2u h\u01a1n trong l\u0129nh v\u1ef1c n\u00e0y.<\/p>\n<p>M\u1ed9t l\u1ee3i \u00edch kh\u00e1c c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a h\u1ecdc sinh l\u00e0 ch\u00fang th\u00fac \u0111\u1ea9y s\u1ef1 h\u1ee3p t\u00e1c v\u00e0 l\u00e0m vi\u1ec7c theo nh\u00f3m gi\u1eefa c\u00e1c h\u1ecdc sinh. L\u00e0m vi\u1ec7c c\u00f9ng nhau \u0111\u1ec3 thu th\u1eadp v\u00e0 ph\u00e2n t\u00edch c\u00e1c m\u1eabu n\u01b0\u1edbc, h\u1ecdc sinh c\u00f3 th\u1ec3 chia s\u1ebb \u00fd t\u01b0\u1edfng, th\u1ea3o lu\u1eadn v\u1ec1 nh\u1eefng ph\u00e1t hi\u1ec7n c\u1ee7a m\u00ecnh v\u00e0 h\u1ee3p t\u00e1c ph\u00e1t tri\u1ec3n c\u00e1c gi\u1ea3i ph\u00e1p cho nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 m\u00f4i tr\u01b0\u1eddng. Ph\u01b0\u01a1ng ph\u00e1p h\u1ee3p t\u00e1c n\u00e0y kh\u00f4ng ch\u1ec9 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m h\u1ecdc t\u1eadp c\u1ee7a sinh vi\u00ean m\u00e0 c\u00f2n chu\u1ea9n b\u1ecb cho h\u1ecd nh\u1eefng ngh\u1ec1 nghi\u1ec7p t\u01b0\u01a1ng lai, n\u01a1i k\u1ef9 n\u0103ng l\u00e0m vi\u1ec7c nh\u00f3m v\u00e0 giao ti\u1ebfp l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"Why are pressure sensors used?\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/lk150HPXgI8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>\nH\u01a1n n\u1eefa, vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a h\u1ecdc sinh c\u00f3 th\u1ec3 gi\u00fap h\u1ecdc sinh ph\u00e1t tri\u1ec3n \u00fd th\u1ee9c tr\u00e1ch nhi\u1ec7m \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng. B\u1eb1ng c\u00e1ch t\u00ecm hi\u1ec3u v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c b\u1ea3o t\u1ed3n t\u00e0i nguy\u00ean n\u01b0\u1edbc, h\u1ecdc sinh c\u00f3 th\u1ec3 tr\u1edf n\u00ean c\u00f3 \u00fd th\u1ee9c h\u01a1n v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 ch\u1ee7 \u0111\u1ed9ng \u1ee7ng h\u1ed9 c\u00e1c ho\u1ea1t \u0111\u1ed9ng b\u1ec1n v\u1eefng. Nh\u1eadn th\u1ee9c n\u00e0y c\u00f3 th\u1ec3 gi\u00fap h\u1ecdc sinh th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 t\u1ea1o ra t\u00e1c \u0111\u1ed9ng t\u00edch c\u1ef1c trong c\u1ed9ng \u0111\u1ed3ng c\u1ee7a m\u00ecnh.<\/p>\n<p>T\u00f3m l\u1ea1i, b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 h\u1ecdc sinh th\u1ef1c hi\u1ec7n c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc li\u00ean quan \u0111\u1ebfn nghi\u00ean c\u1ee9u ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. B\u1eb1ng c\u00e1ch cung c\u1ea5p cho h\u1ecdc sinh tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf, ph\u00e1t tri\u1ec3n k\u1ef9 n\u0103ng trong ph\u00f2ng th\u00ed nghi\u1ec7m, nu\u00f4i d\u01b0\u1ee1ng tr\u00ed t\u00f2 m\u00f2 v\u00e0 t\u00ecm hi\u1ec3u, th\u00fac \u0111\u1ea9y h\u1ee3p t\u00e1c v\u00e0 l\u00e0m vi\u1ec7c theo nh\u00f3m c\u0169ng nh\u01b0 th\u1ea5m nhu\u1ea7n tinh th\u1ea7n tr\u00e1ch nhi\u1ec7m \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng, b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc c\u00f3 th\u1ec3 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m h\u1ecdc t\u1eadp c\u1ee7a h\u1ecdc sinh v\u00e0 chu\u1ea9n b\u1ecb cho s\u1ef1 nghi\u1ec7p t\u01b0\u01a1ng lai trong l\u0129nh v\u1ef1c STEM l\u0129nh v\u1ef1c. Gi\u00e1o vi\u00ean v\u00e0 nh\u00e0 gi\u00e1o d\u1ee5c c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc v\u00e0o c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a h\u1ecdc sinh v\u00e0 gi\u00fap h\u1ecdc sinh nh\u1eadn ra l\u1ee3i \u00edch c\u1ee7a vi\u1ec7c nghi\u00ean c\u1ee9u ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc, h\u1ecdc sinh c\u00f3 th\u1ec3 hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1c v\u1ea5n \u0111\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 g\u00f3p ph\u1ea7n b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean n\u01b0\u1edbc cho th\u1ebf h\u1ec7 t\u01b0\u01a1ng lai.<\/p>\n<h1 id=\"how-to-choose-the-right-water-testing-kit-for-student-experiments-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Cach_chon_bo_dung_cu_kiem_tra_nuoc_phu_hop_cho_thi_nghiem_cua_hoc_sinh\"><\/span>C\u00e1ch ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc ph\u00f9 h\u1ee3p cho th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecdc sinh<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nB\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc l\u00e0 c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft \u0111\u1ec3 h\u1ecdc sinh ti\u1ebfn h\u00e0nh c\u00e1c th\u00ed nghi\u1ec7m li\u00ean quan \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc v\u00e0 khoa h\u1ecdc m\u00f4i tr\u01b0\u1eddng. Nh\u1eefng b\u1ed9 d\u1ee5ng c\u1ee5 n\u00e0y cung c\u1ea5p m\u1ed9t c\u00e1ch thu\u1eadn ti\u1ec7n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed cho sinh vi\u00ean \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c th\u00f4ng s\u1ed1 kh\u00e1c nhau c\u1ee7a n\u01b0\u1edbc, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 pH, oxy h\u00f2a tan v\u00e0 \u0111\u1ed9 \u0111\u1ee5c. V\u1edbi nhi\u1ec1u l\u1ef1a ch\u1ecdn c\u00f3 s\u1eb5n tr\u00ean th\u1ecb tr\u01b0\u1eddng, vi\u1ec7c ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc ph\u00f9 h\u1ee3p cho c\u00e1c th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecdc sinh c\u00f3 th\u1ec3 khi\u1ebfn b\u1ea1n cho\u00e1ng ng\u1ee3p. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd th\u1ea3o lu\u1eadn v\u1ec1 m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 ch\u00ednh c\u1ea7n c\u00e2n nh\u1eafc khi l\u1ef1a ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc cho h\u1ecdc sinh.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/ORP-Redox-Potential-Controller-For-Water-Quality-Analysis-ORP-18003.png\" alt=\"alt-9112\" class=\"wp-image-9112\" id=\"i9112\" \/><br \/>\n<img decoding=\"async\" src=\"http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/DO-1800-Dissolved-oxygen-measurement-and-control-instrument-2.png\" alt=\"alt-9113\" class=\"wp-image-9113\" id=\"i9113\" \/><br \/>\nM\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ea7n c\u00e2n nh\u1eafc khi l\u1ef1a ch\u1ecdn b\u1ed9 th\u1eed n\u01b0\u1edbc l\u00e0 c\u00e1c th\u00f4ng s\u1ed1 m\u00e0 n\u00f3 c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c. C\u00e1c b\u1ed9 d\u1ee5ng c\u1ee5 kh\u00e1c nhau \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111o c\u00e1c th\u00f4ng s\u1ed1 kh\u00e1c nhau, v\u00ec v\u1eady \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i x\u00e1c \u0111\u1ecbnh th\u00f4ng s\u1ed1 n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi th\u00ed nghi\u1ec7m ho\u1eb7c d\u1ef1 \u00e1n c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, n\u1ebfu h\u1ecdc sinh \u0111ang nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u00f4 nhi\u1ec5m \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc, c\u00e1c em c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t b\u1ed9 d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 \u0111o m\u1ee9c \u0111\u1ed9 ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m nh\u01b0 nitrat v\u00e0 ph\u1ed1t ph\u00e1t. M\u1eb7t kh\u00e1c, n\u1ebfu h\u1ecdc sinh \u0111ang nghi\u00ean c\u1ee9u v\u1ec1 s\u1ee9c kh\u1ecfe c\u1ee7a h\u1ec7 sinh th\u00e1i d\u01b0\u1edbi n\u01b0\u1edbc, c\u00e1c em c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t b\u1ed9 d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 \u0111o n\u1ed3ng \u0111\u1ed9 oxy h\u00f2a tan.<\/p>\n<p>M\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng kh\u00e1c c\u1ea7n xem x\u00e9t l\u00e0 t\u00ednh d\u1ec5 s\u1eed d\u1ee5ng c\u1ee7a b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc. H\u1ecdc sinh, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng h\u1ecdc sinh m\u1edbi l\u00e0m th\u00ed nghi\u1ec7m, c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n khi s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 d\u1ee5ng c\u1ee5 th\u00ed nghi\u1ec7m ph\u1ee9c t\u1ea1p ho\u1eb7c c\u1ed3ng k\u1ec1nh. H\u00e3y t\u00ecm nh\u1eefng b\u1ed9 d\u1ee5ng c\u1ee5 c\u00f3 h\u01b0\u1edbng d\u1eabn r\u00f5 r\u00e0ng v\u00e0 thi\u1ebft b\u1ecb d\u1ec5 s\u1eed d\u1ee5ng. M\u1ed9t s\u1ed1 b\u1ed9 d\u1ee5ng c\u1ee5 th\u1eadm ch\u00ed c\u00f2n \u0111i k\u00e8m v\u1edbi thu\u1ed1c th\u1eed \u0111\u00f3ng g\u00f3i s\u1eb5n v\u00e0 que th\u1eed c\u00f3 m\u00e3 m\u00e0u, gi\u00fap h\u1ecdc sinh th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>m\u00f4 h\u00ecnh<\/td>\n<td colspan=\"2\">B\u1ed9 \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n tr\u1ef1c tuy\u1ebfn pH\/ORP d\u00f2ng pH\/ORP-5500<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">Ph\u1ea1m vi \u0111o<\/td>\n<td>pH<\/td>\n<td>0.00~14.00<\/td>\n<\/tr>\n<tr>\n<td>ORP<\/td>\n<td>-2000mV~2000mV<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>( 0,0~50,0)\u2103 v\u00e0 nbsp; (Th\u00e0nh ph\u1ea7n b\u00f9 nhi\u1ec7t \u0111\u1ed9: NTC10K)<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td>pH<\/td>\n<td>0.01<\/td>\n<\/tr>\n<tr>\n<td>ORP<\/td>\n<td>1mV<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>0,1\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">\u0111\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>pH<\/td>\n<td>0.1<\/td>\n<\/tr>\n<tr>\n<td>ORP<\/td>\n<td>\u00b15mV\uff08b\u1ed9 ph\u1eadn \u0111i\u1ec7n t\u1eed\uff09<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>\u00b10.5\u2103<\/td>\n<\/tr>\n<tr>\n<td>Tr\u1edf kh\u00e1ng \u0111\u1ea7u v\u00e0o g\u1ea7n \u0111\u00fang<\/td>\n<td colspan=\"2\">3\u00d71011\u03a9<\/td>\n<\/tr>\n<tr>\n<td>Dung d\u1ecbch \u0111\u1ec7m<\/td>\n<td colspan=\"2\">gi\u00e1 tr\u1ecb pH: 10,00\uff1b9,18\uff1b7,00\uff1b6,86\uff1b4,01\uff1b4,00<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9. ph\u1ea1m vi b\u00f9<\/td>\n<td colspan=\"2\">(0~50)\u2103\uff08v\u1edbi 25\u2103 l\u00e0m ti\u00eau chu\u1ea9n\uff09B\u00f9 nhi\u1ec7t \u0111\u1ed9 th\u1ee7 c\u00f4ng v\u00e0 t\u1ef1 \u0111\u1ed9ng<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">(4~20)mA<\/td>\n<td>\u0111\u1eb7c \u0111i\u1ec3m<\/td>\n<td>D\u1ee5ng c\u1ee5\/m\u00e1y ph\u00e1t b\u1ecb c\u00f4 l\u1eadp, c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh ho\u00e0n to\u00e0n, c\u00f3 th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c \u0111\u1ec3 l\u1ef1a ch\u1ecdn<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec7n tr\u1edf v\u00f2ng l\u1eb7p<\/td>\n<td>500\u03a9\uff08Max\uff09\uff0cDC 24V<\/td>\n<\/tr>\n<tr>\n<td>\u0111\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>\u00b10.1mA<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Ki\u1ec3m so\u00e1t li\u00ean h\u1ec7<\/td>\n<td>Ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n<\/td>\n<td>R\u01a1le \u0111\u00f4i SPST-NO, ki\u1ec3u tr\u1ea3 v\u1ec1<\/td>\n<\/tr>\n<tr>\n<td>Dung l\u01b0\u1ee3ng v\u00f2ng l\u1eb7p<\/td>\n<td>AC 220V\/AC 110V 2A(T\u1ed1i \u0111a)\uff1bDC 24V 2A(T\u1ed1i \u0111a)<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/td>\n<td colspan=\"2\">3W<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">L\u00e0m vi\u1ec7c v\u00e0 m\u00f4i tr\u01b0\u1eddng<\/td>\n<td>nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>(0~50)\u2103<\/td>\n<\/tr>\n<tr>\n<td>\u0111\u1ed9 \u1ea9m<\/td>\n<td>\u226485\uff05RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/td>\n<td colspan=\"2\">Nhi\u1ec7t \u0111\u1ed9.(-20-60) \u2103;\u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i:\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc ph\u00e1c th\u1ea3o<\/td>\n<td colspan=\"2\">96mm\u00d796mm\u00d7105mm\uff08H\u00d7W\u00d7D\uff09<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td colspan=\"2\">91mm\u00d791mm(H\u00d7W)<\/td>\n<\/tr>\n<tr>\n<td>c\u00e0i \u0111\u1eb7t<\/td>\n<td colspan=\"2\">G\u1eafn b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, l\u1eafp \u0111\u1eb7t nhanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>Chi ph\u00ed c\u0169ng l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc khi l\u1ef1a ch\u1ecdn b\u1ed9 th\u1eed n\u01b0\u1edbc cho h\u1ecdc sinh. M\u1eb7c d\u00f9 vi\u1ec7c \u0111\u1ea7u t\u01b0 v\u00e0o m\u1ed9t b\u1ed9 d\u1ee5ng c\u1ee5 ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ec3 mang l\u1ea1i k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft nh\u01b0ng \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i xem x\u00e9t nh\u1eefng h\u1ea1n ch\u1ebf v\u1ec1 ng\u00e2n s\u00e1ch c\u1ee7a tr\u01b0\u1eddng h\u1ecdc ho\u1eb7c c\u01a1 s\u1edf gi\u00e1o d\u1ee5c. H\u00e3y t\u00ecm nh\u1eefng b\u1ed9 d\u1ee5ng c\u1ee5 c\u00f3 s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa kh\u1ea3 n\u0103ng chi tr\u1ea3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng. M\u1ed9t s\u1ed1 b\u1ed9 d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 \u0111i k\u00e8m v\u1edbi c\u00e1c ph\u1ee5 ki\u1ec7n ho\u1eb7c thu\u1ed1c th\u1eed b\u1ed5 sung c\u00f3 th\u1ec3 l\u00e0m t\u0103ng gi\u00e1 th\u00e0nh, v\u00ec v\u1eady h\u00e3y nh\u1edb \u0111\u00e1nh gi\u00e1 gi\u00e1 tr\u1ecb t\u1ed5ng th\u1ec3 c\u1ee7a b\u1ed9 d\u1ee5ng c\u1ee5 tr\u01b0\u1edbc khi mua.<\/p>\n<p>\u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng c\u1ea7n c\u00e2n nh\u1eafc khi ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc cho h\u1ecdc sinh . B\u1ed9 d\u1ee5ng c\u1ee5 n\u00e0y ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c vi\u1ec7c h\u1ecdc sinh s\u1eed d\u1ee5ng v\u00e0 x\u1eed l\u00fd th\u01b0\u1eddng xuy\u00ean m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3. H\u00e3y t\u00ecm nh\u1eefng b\u1ed9 d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb v\u1eadt li\u1ec7u b\u1ec1n v\u00e0 c\u00f3 ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh ho\u1eb7c \u0111\u1ea3m b\u1ea3o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u00fang s\u1ebd t\u1ed3n t\u1ea1i trong th\u1eddi gian d\u00e0i.<\/p>\n<p>Khi ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc cho h\u1ecdc sinh, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i xem x\u00e9t t\u00ednh s\u1eb5n c\u00f3 c\u1ee7a h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng. H\u1ecdc sinh c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n ho\u1eb7c c\u00f3 th\u1eafc m\u1eafc khi s\u1eed d\u1ee5ng b\u1ed9 t\u00e0i li\u1ec7u n\u00e0y, v\u00ec v\u1eady vi\u1ec7c ti\u1ebfp c\u1eadn c\u00e1c ngu\u1ed3n h\u1ed7 tr\u1ee3 \u0111\u00e1ng tin c\u1eady l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. H\u00e3y t\u00ecm nh\u1eefng b\u1ed9 d\u1ee5ng c\u1ee5 \u0111i k\u00e8m v\u1edbi \u0111\u01b0\u1eddng d\u00e2y tr\u1ee3 gi\u00fap ho\u1eb7c c\u1ed5ng h\u1ed7 tr\u1ee3 tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 h\u1ecdc sinh c\u00f3 th\u1ec3 t\u00ecm ki\u1ebfm s\u1ef1 tr\u1ee3 gi\u00fap n\u1ebfu c\u1ea7n.<\/p>\n<p>T\u00f3m l\u1ea1i, vi\u1ec7c ch\u1ecdn b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc ph\u00f9 h\u1ee3p cho c\u00e1c th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecdc sinh \u0111\u00f2i h\u1ecfi ph\u1ea3i xem x\u00e9t c\u1ea9n th\u1eadn m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1, bao g\u1ed3m c\u00e1c th\u00f4ng s\u1ed1 \u0111o \u0111\u01b0\u1ee3c, t\u00ednh d\u1ec5 s\u1eed d\u1ee5ng, chi ph\u00ed, \u0111\u1ed9 b\u1ec1n v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt. B\u1eb1ng c\u00e1ch d\u00e0nh th\u1eddi gian \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y v\u00e0 ch\u1ecdn m\u1ed9t b\u1ed9 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a h\u1ecdc sinh v\u00e0 d\u1ef1 \u00e1n, c\u00e1c nh\u00e0 gi\u00e1o d\u1ee5c c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u1ecdc sinh c\u00f3 tr\u1ea3i nghi\u1ec7m t\u00edch c\u1ef1c v\u00e0 th\u00e0nh c\u00f4ng khi th\u1ef1c hi\u1ec7n c\u00e1c th\u00ed nghi\u1ec7m v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc trong d\u1ef1 \u00e1n khoa h\u1ecdc c\u1ee7a sinh vi\u00ean B\u1ed9 d\u1ee5ng c\u1ee5 ki\u1ec3m tra n\u01b0\u1edbc l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb d\u00e0nh cho h\u1ecdc sinh th\u1ef1c hi\u1ec7n c\u00e1c d\u1ef1 \u00e1n khoa h\u1ecdc li\u00ean quan \u0111\u1ebfn nghi\u00ean c\u1ee9u ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. Nh\u1eefng b\u1ed9 d\u1ee5ng&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3221,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"categories":[200],"tags":[],"translation":{"provider":"WPGlobus","version":"2.12.0","language":"vi","enabled_languages":["en","zh","es","de","fr","ru","pt","ar","ja","ko","it","id","hi","th","vi","tr"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"zh":{"title":false,"content":false,"excerpt":false},"es":{"title":false,"content":false,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false},"pt":{"title":false,"content":false,"excerpt":false},"ar":{"title":false,"content":false,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"ko":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false},"id":{"title":false,"content":false,"excerpt":false},"hi":{"title":false,"content":false,"excerpt":false},"th":{"title":false,"content":false,"excerpt":false},"vi":{"title":true,"content":true,"excerpt":false},"tr":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/posts\/12501"}],"collection":[{"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/comments?post=12501"}],"version-history":[{"count":5,"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/posts\/12501\/revisions"}],"predecessor-version":[{"id":12561,"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/posts\/12501\/revisions\/12561"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/media\/3221"}],"wp:attachment":[{"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/media?parent=12501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/categories?post=12501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shchimay.com\/vi\/wp-json\/wp\/v2\/tags?post=12501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}