Koj puas tau xav tias, cov tswm ciab dawb hlawv sai dua cov tswm ciab xim? Zoo li txhua yam ntawm lub tswm ciab tuaj yeem cuam tshuam sai npaum li cas lawv hlawv, yog li nws tsis xav tias tib neeg xav paub ntxiv txog qhov sib ntxiv ntawm tswm ciab dyes thiab xim.
Reasoning Behind the Theory
Cov neeg feem coob zoo li xav tias cov tswm ciab dawb yuav kub hnyiab tau sai dua cov uas muaj cov xim ntxiv. Qhov laj thawj tom qab qhov kev xav no yog tias cov quav ciab dawb huv dua, thiab yuav ua rau kub hnyiab sai dua tswm ciab nrog cov khoom ntxiv.
Tsis muaj ib yam dabtsi los ntawm txoj kev xav no, tab sis thaum muab tso rau qhov kev sim, cov tswm ciab dawb hlawv sai dua cov tswm ciab xim?
Xim Ua Me Me Sib Txawv
Hauv kev muaj tiag, xim ua rau me me kom tsis muaj qhov sib txawv ntawm lub tswm ciab kub npaum li cas. Qhov tseeb, tswm ciab dyes tuaj yeem ua kom lub tswm ciab kub hnyiab hauv qee qhov xwm txheej, ua rau cov xim tswm ciab hlawv sai dua. Qhov no yog qhov tseeb tshwj xeeb rau cov tswm ciab xim nplua nuj nrog ntau cov xim ntxiv.
Zuag qhia tag nrho, muaj cov xim me me uas siv los ua tswm ciab uas nws tsis cuam tshuam rau lub sijhawm hlawv ntau heev. Tsuas yog ib qho me me ntawm cov xim uas xav tau los hloov cov xim dawb dawb mus rau hauv cov xim ci ntsa iab.
Ua Dawb Taws tswm ciab hlawv sai dua cov tswm ciab xim - Cov pov thawj
Lub ntsiab lus ntawm cov tswm ciab dawb piv nrog cov tswm ciab xim yog ib qho kev kawm nrov rau cov menyuam kawm ntawv txoj haujlwm kev ncaj ncees. Yuav luag tag nrho cov no pib nrog kev xav tias lub tswm ciab dawb yuav hlawv sai tshaj plaws, tab sis qhov ntawd tsis yog qhov teeb meem. Nov yog qee qhov txuas los qhia cov txiaj ntsig ntawm qhov kev sim no:
- Poster.4teachers - Nov yog ib qho piv txwv ntawm qhov project tiag tiag nrog cov txiaj ntsig, uas cov tub ntxhais kawm pom tias tswm ciab liab hlawv sai tshaj plaws.
- Txhua-Science-Fair-Projects - Nov yog qhov kev npaj tau zoo heev thiab ua tiav kev sim siv tsib xim sib txawv ntawm tswm ciab. Tus menyuam kawm ntawv no pom tias nws cov tswm ciab daj tau hlawv ceev tshaj plaws.
Lub Ntsiab Tseem Ceeb hauv Kev Kub Ntxhov Siab
Raws li koj tuaj yeem pom, xim tsis ua si ntau yam ntawm qhov ntev npaum li cas lub tswm ciab hlawv. Muaj ntau ntau lwm cov ntsiab lus ntawm tswm ciab uas yuav ua kom ceev los yog qeeb lub sij hawm uas lub tswm ciab yuav siv sij hawm los hlawv.
Wicks
Qhov tseem ceeb tshaj plaws hauv lub sijhawm hlawv yog tswm ciab wick. Cov wicks dav dua los yog tuab dua yuav hlawv sai dua li cov nyias nyias, thiab cov khoom siv wick yog tsim nrog kuj tuaj yeem ua rau muaj kev cuam tshuam.
Qhov tau hais tias, nws yog ib qho tseem ceeb uas yuav tau xaiv txoj cai wick rau koj qhov project tswm ciab. Cov tswm ciab loj nrog cov wicks nyias nyias yuav hlawv tsis sib xws thiab koj yuav raug cov nplaim taws poob los ntawm kev sib xyaw ua ke.
Candle Wax
Txoj kev sib txawv ntawm tswm ciab ciab hlawv ntawm qhov kub thiab txias. Feem ntau hais lus, qhov nyuaj ntawm cov quav ciab, lub sijhawm hlawv ntev dua. Soy wax, piv txwv li, yog lub hauv paus softer rau kev ua tswm ciab, thiab cov tswm ciab no yuav kub hnyiab tau sai dua li cov beeswax los yog paraffin.
Lwm Elements
Lwm yam uas tuaj yeem cuam tshuam ntev npaum li cas lub tswm ciab hlawv suav nrog:
- Additives, xws li siv quav ciab hardeners
- Hlub tswm ciab nyob rau hauv qhov chaw dav dav
- Lub hnub nyoog ntawm tswm ciab, raws li cov laus tswm ciab yuav qhuav tawm
- Ntxim qab heev
Controlled Conditions
Thaum koj xav txog tag nrho lwm yam uas txiav txim siab ntev npaum li cas lub tswm ciab hlawv, tej zaum koj yuav raug ntxias kom txo qis cov kev sim uas tau teev tseg saum toj no. Txij li txhua yam los ntawm lub wick mus rau lub tswm ciab ciab pab hlawv lub sij hawm, tej zaum cov kev sim no yuav tsum tau muab tag nrho cov no los xav.
Qhov tseeb, cov menyuam yaus ua qhov kev sim siv tib lub hom thiab qhov loj ntawm tswm ciab rau lawv qhov kev xeem. Nws yuav sawv rau qhov laj thawj tias cov chaw tsim khoom siv tswm ciab yuav siv cov khoom siv los ua cov tswm ciab, nrog qhov sib txawv ntawm lawv tsuas yog cov xim ntxiv. Yog li ntawd, cov kev sim no yuav muaj tseeb.
Tsim Koj Tus Kheej
Yog tias koj xav sim qhov kev xav rau koj tus kheej, lossis kom koj cov menyuam muab nws mus ua qhov kev lom zem yav tsaus ntuj kev tshawb fawb, nws yooj yim rau kev teeb tsa thiab ua tiav. Muaj cov lus qhia tag nrho, suav nrog cov ntaub ntawv xav tau, ntawm LearnerScience.com. Yog tias koj xav kom muaj kev tswj hwm cov ntaub ntawv, koj tuaj yeem ua lub tswm ciab koj tus kheej, kom ntseeg tau tias qhov sib txawv ntawm lawv tsuas yog xim ntxiv.
