Kev sim hauv tsev uas peb yuav tham txog yog yooj yim heev, tab sis lom zem heev. Yog tias koj tus menyuam nyuam qhuav paub txog ntau yam xwm txheej thiab cov txheej txheem, cov kev paub zoo li no yuav zoo li yog khawv koob tiag tiag rau nws. Tab sis nws tsis yog ib qho zais cia rau leej twg tias nws yog qhov zoo tshaj plaws los nthuav qhia cov ntaub ntawv nyuaj rau cov menyuam yaus hauv txoj kev ua si - qhov no yuav pab kom sib sau cov ntaub ntawv thiab tso cov kev nco zoo uas yuav pab tau rau kev kawm ntxiv.
tawg hauv dej tseem
Sib tham txog qhov kev sim ua tau nyob hauv tsev, ua ntej ntawm txhua yam peb yuav tham txog yuav ua li cas thiaj li ua kom tawg me me. Koj yuav xav tau ib lub nkoj loj uas muaj cov kais dej zoo tib yam (piv txwv li, nws tuaj yeem yog lub raj mis peb-liter). Nws yog ntshaw kom cov kua nyob rau hauv ib qho chaw ntsiag to rau 1-3 hnub. Tom qab ntawd, ua tib zoo, tsis txhob kov lub nkoj nws tus kheej, tso ob peb tee ntawm tus number case rau hauv nruab nrab ntawm cov dej los ntawm qhov siab. Lawv yuav nthuav dav zoo nkauj hauv dej, zoo li hauv kev qeeb qeeb.
Pob pam uas ua rau nws tus kheej
Nov yog lwm qhov kev nthuav dav kom muaj,ua cov kev sim tshuaj hauv tsev. Nyob rau hauv lub pob nws tus kheej, koj yuav tsum ncuav ib teaspoon ntawm zoo tib yam baking soda. Tom ntej no, koj yuav tsum tau nqa lub raj mis yas khoob thiab ncuav 4 tablespoons vinegar rau hauv nws. Lub pob yuav tsum rub nws caj dab. Raws li qhov tshwm sim, cov dej qab zib yuav nchuav rau hauv cov kua txiv hmab txiv ntoo, cov tshuaj tiv thaiv yuav tshwm sim nrog kev tso tawm cov pa roj carbon dioxide, thiab lub zais pa yuav nce.
Volcano
Nrog tib lub baking soda thiab vinegar koj tuaj yeem ua lub roob hluav taws tiag tiag hauv koj lub tsev! Koj tuaj yeem siv lub khob yas ua lub hauv paus. 2 tablespoons dej qab zib yog poured rau hauv lub "qhov cua", ncuav nws nrog ib tug peb lub hlis twg khob ntawm boiled dej thiab ntxiv ib me ntsis zaub mov xim. Tom qab ntawd nws tsuas yog ntxiv ib lub quarter khob ntawm vinegar thiab saib qhov "eruption".
Kub Khawv koob
Kev sim hauv tsev uas koj tuaj yeem ua qauv qhia rau koj tus menyuam kuj suav nrog kev hloov xim txawv txawv nrog ntau yam tshuaj. Ib qho piv txwv zoo ntawm qhov no yog cov tshuaj tiv thaiv uas tshwm sim thaum iodine thiab cov hmoov txhuv nplej siab ua ke. Los ntawm kev sib xyaw xim av iodine thiab cov hmoov txhuv nplej siab dawb, koj tau txais cov kua … lub xim xiav ci!
foob pob hluav taws
Lwm yam kev sim ua li cas hauv tsev? Chemistry muab ib qho chaw loj rau kev ua haujlwm hauv qhov no. Piv txwv li, koj tuaj yeem ua cov foob pob hluav taws zoo nyob hauv chav (tab sis zoo dua hauv vaj). Ib me ntsis poov tshuaj permanganate yuav tsum tau crushed rau hauv ib tug nplua hmoov, thiab ces coj ib tug zoo xws li cov charcoal thiab kuj grind nws. Ua tib zoo sib tovthee nrog manganese, ntxiv hlau hmoov muaj. Qhov sib tov no yog nchuav rau hauv lub hau hlau (ib qho zoo tib yam thimble kuj tsim nyog) thiab khaws cia rau hauv cov nplaim taws. Sai li qhov sib xyaw ua kom sov, tag nrho cov nag ntawm cov nplaim zoo nkauj yuav pib tawg ib ncig.
Soda foob pob ua ntxaij
Thiab, thaum kawg, cia peb hais dua txog kev sim tshuaj hauv tsev, qhov yooj yim tshaj plaws thiab siv tau cov tshuaj reagents koom nrog - vinegar thiab sodium bicarbonate. Nyob rau hauv cov ntaub ntawv no, koj yuav tsum tau coj ib tug yas zaj duab xis cassette, sau nws nrog ci dej qab zib, thiab ces sai sai ncuav nyob rau hauv 2 teaspoons ntawm vinegar. Cov kauj ruam tom ntej yog muab lub hau rau ntawm lub foob pob hluav taws, muab tso rau hauv pem teb, nqis rov qab thiab saib nws tawm mus.
