Cov xuab zeb daus tuaj yeem siv los ua cov khoom zoo nkauj thiab khoom siv tes ua, tab sis ua ntej lawv yuav tsum tau tawv kom lawv tsis tawg. Hardening cov nyiaj daus las yog txheej txheem nrawm thiab yooj yim uas txhua tus tuaj yeem ua nrog qee yam khoom siv yooj yim. Npaj koj cov nyiaj xuab zeb nrog tshuaj dawb thiab dej thiab siv cov kua nplaum ua kom tawv tawv yuav ua kom koj cov nyiaj xuab zeb tig tawm dawb thiab ruaj khov thaum koj ua tiav nrog lawv.
Cov kauj ruam
Ntu 1 ntawm 2: Ntxuav thiab Ntxuav Cov Nqaij Sand
Kauj Ruam 1. Tsau cov xuab zeb hauv cov dej tshiab rau 2-3 teev
Siv lub thoob los yog lub dab dej los tsau lawv, tshuaj xyuas tom qab lawv tau so li ob peb teev. Yog tias yog, muab pov tseg thiab sau lub thoob lossis dej nrog cov dej tshiab. Rov ua cov txheej txheem no kom txog thaum cov dej nyob ruaj khov thiab tsis hloov xim.
Kauj Ruam 2. Npaj cov tshuaj dawb thiab dej sib tov kom ntub cov xuab zeb hauv
Ua qhov sib xyaw nrog 3 ntu dej rau txhua 1 feem tshuaj dawb. Ncuav qhov sib tov tso rau hauv lub thoob lossis tais thiab tsau cov xuab zeb hauv nws li ntawm 3 feeb.
Cov xuab zeb daus tau dawb los ntawm lub hnub thaum lawv ntxuav ntawm ntug dej. Hla cov kauj ruam no yog tias koj txaus siab nrog qib dawb ntawm koj cov nyiaj xuab zeb
Kauj Ruam 3. Tshem cov xuab zeb daus los ntawm cov dej thiab cov tshuaj dawb
Muab pov tseg cov tshuaj thiab yaug cov xuab zeb daus nrog dej tshiab. Yaug lawv kom huv si kom tag nrho cov tshuaj dawb tau ntxuav tawm.
Kauj Ruam 4. Cia cov xuab zeb qhuav tag
Muab lawv tso rau hauv ib txheej rau ntawm daim ntawv quav ciab lossis ci ci. Rov qab saib hauv ib teev kom pom tias lawv qhuav.
Muab cov xuab zeb tso rau sab nraum lub hnub kom pab lawv qhuav sai dua
Ntu 2 ntawm 2: Hardening Sand Dollars with Glue
Kauj Ruam 1. Npaj ua ke ntawm cov kua nplaum dawb hauv tsev kawm ntawv thiab dej los pleev cov xuab zeb
Ua qhov sib xyaw nrog 1 feem kua nplaum dawb rau 1 feem dej. Sib tov cov kua nplaum thiab dej ua ke hauv ib lub tais kom txog thaum nws sib tov zoo.
Kauj Ruam 2. Npog cov nyiaj xuab zeb nrog cov kua nplaum thiab dej sib tov siv txhuam
Yuav cov txhuam xim pheej yig lossis txhuam txhuam ntawm koj lub khw muag khoom hauv zos. Diav tus txhuam rau hauv cov kua nplaum thiab dej sib tov thiab pleev xim rau tag nrho saum npoo ntawm txhua qhov nyiaj daus las.
Kauj Ruam 3. Muab cov nyiaj xuab zeb tso rau ntawm daim ntawv ciab kom qhuav
Teem cov pas nrig, tus pas txhuam hniav, lossis xaum rau ntawm daim ntawv ciab kom nce me ntsis cov xuab zeb kom cov hauv qab tuaj yeem qhuav sai dua.
Kauj Ruam 4. Siv cov xuab zeb tawv tawv los ua khoom siv tes ua thiab dai kom zoo nkauj
Sau cov rhawv zeb nrog cov nyiaj xuab zeb lossis siv lawv los ua caj dab thiab qhwv ntsej. Koj tseem tuaj yeem pleev xim cov xuab zeb nyuaj thiab muab tso rau ntawm cov me me.
Lus ceeb toom
- Tsis txhob sau cov nyiaj xuab zeb nyob ntawm lub puam. Koj tuaj yeem qhia yog tias cov xuab zeb daus las tseem muaj sia nyob los ntawm kev nrhiav kev txav cov raj taw hauv qab ntawm nws.
- Cov xuab zeb daus las yog qhov tsis yooj yim. Ceev faj thaum tuav lawv lossis lawv yuav tawg sib nrug.
