Nthuav Science: yuav ua li cas siv lub tsev nyob rau hauv Science News for KIDS rau nyiam tus me nyuam?

Nyob rau hauv high school, pib Science News for KIDS kom txog rau thaum qib 8, nyuaj heev yuav tau noj cov science me nyuam. Tab sis los npaj cov menyuam kawm ntawv rau cov kev kawm yuav ua tau heev kev lom zem thiab yooj yim txoj kev - los ntawm Workers kev nyob rau hauv Science News for KIDS nyob rau hauv tsev. Cov mini-thwmsim yuav pab mus saib cov science rau lwm cov tes, ib tug qhia tau tias ntawm "Tshuaj tricks" nyob rau hauv ib tug me nyuam tus neeg sab nrauv considerably kom cov neeg kawm ntawv ntawm kev lom zem.

fireproof nqi

Mus nqa tawm ib tug heev kawg spectacular, tab sis ib tug yooj yim ua kom yuam kev, koj yuav tsum tau:

• daim nqi;
• aqueous-alcoholic tov nrog ib tug dej cawv rau cov ntsiab lus ntawm hais txog 50%;
• ntsev;
• ncais los yog ciaj tais.

Ib tug pinch ntawm ntsev yuav tsum tau ntxiv rau cov tshuaj. Tom ntej no nyob rau hauv cov tshuaj siv ciaj tais tso daim nqi. Cov neeg uas yog rau cov thawj lub sij hawm tuas xws li ib txoj kev nyob rau hauv Science News for KIDS, nws yog zoo dua mus coj ib tug me me nqi meej mom!

Thaum cov nyiaj no zoo vymoknut, lawv yuav tsum rov khaws cov ciaj tais thiab maj mam muab co tawm tshaj kua nrog rau daim ntawv. Tam sim no nws yog ua tau rau teeb hluav taws! Hluav Taws yuav muab qhov chaw thoob plaws hauv lub nqi, tab sis tsis muaj ib tug ntug txawm browns. Qhov no yog vim hais tias cov kub cawv muaj nyob rau hauv cov tshuaj. Nyob rau hauv lem, cov dej uas soaked daim ntawv tsis muaj sij hawm los ziab.

siv lead ua khoom

Crystal txoj kev loj hlob - ib qho ntawm feem nrov haujlwm, uas muaj entertaining Science News for KIDS. Sim kawm nrog crystallization feem ntau siv rau qab zib, tab sis lub qab zib muaju yog tsis muaj dab tsi tshiab. Peb muaj tshiab thiab txawv txawv pom - qhov muaju zus rau qe!

Crystal khoom yuav ua li cas by:

• alum (muag nyob rau hauv pharmacies);
• PVA lo;
• dyes.

Lub muaju rau lub qe loj hlob sai sai heev, nyob rau hauv cia li ib hnub twg. Nws yog tsim nyog los ua ntej-ntxuav lub zoo li meej thiab qhuav nws. Tom qab uas lub qe smeared nrog kua nplaum thiab ywg dej alum. Tam sim no lawv yuav tsum tau pw rau ib tug ob peb teev mus rau qhuav tawm dua.

Ntxiv mus, cov xim yuav tsum ua neej nyob hauv ob lub khob ntawm dej dawb. Tus nqi ntawm cov xim muaj peev xwm yuav xaiv nws tus kheej, nyob rau hauv cov ntaub ntawv no, tsuas yog cov kev siv ntawm cov xim nyob muaju los ntawm nws. Lub qe yog muab tso rau hauv cov xim rau hnub los yog hmo ntuj. Lub ntev lub qe dag nyob rau hauv ib tug daws, cov muaju loj hlob loj. Tau npaj siv lead ua qe yuav tsum kom zoo zoo - lawv yog cov heev yooj yim.

Zais pa rau hauv lub raj mis

Raws li yuav inflated zais pa tsis Helium tsis ua lub cev dag zog? Ua li no, koj yuav siv tau ib tug dog dig ci dej qab zib thiab vinegar, uas sawv nyob rau hauv ib tes nyob rau hauv lub chav ua noj txhua txhua tus niam. Mus nqa tawm no xyaum ua tej yam nyob rau hauv Science News for KIDS, yuav tsum tau:

• ib tug zais pa;
• raj mis;
• 3-4 teaspoons ntawm dej qab zib;
• vinegar.

Dej qab zib nchuav ncaj qha mus rau hauv ib lub pob nrog kev pab los ntawm ib tug funnel los yog ib diav. Tom qab uas nws yog muab tso rau hauv lub raj mis nrog ib tug me me npaum li cas ntawm vinegar. Thaum cov dej qab zib ntawm cov pob pib sawv nyob rau hauv lub raj mis, nws pib mus rau swell, raws li hais tias los ntawm Helium. Qhov no yog vim lub fact tias lub vinegar yog reacted nrog dej qab zib, tso cov pa roj carbon dioxide. Cov pob yog inflated vim roj nyob rau hauv ib ob peb lub vib nas this xwb thiab ntes!

Multi-coloured khaubncaws sab nraud povtseg nyob rau hauv lub raj mis

Cov tom ntej no xyaum ua tej yam nyob rau hauv Science News for KIDS tus me nyuam yuav piav kom meej meej lub tswvyim ntawm kev ceev ntawm cov kua. Rau no yuav tsum tau:

• ib tug peb lub hlis twg khob ntawm sunflower roj;
• ib tug peb lub hlis twg khob ntawm cov dej, tinted nyob rau hauv tej kaj xim;
• ib tug peb lub hlis twg khob suab thaj phoov (rau cov zoo kom pom tseeb, nws yog tseem tsim nyog los ntxiv cov xim).

Tus me nyuam tej zaum yuav xav tias nyob rau hauv ua ntej yuav ua li cas thaum nws tag nrho cov ntawm cov kua. Nws zoo ib yam li cov kev tshwm sim - phoov settles cia li lub feem ntau ntom, cov dej yog nyob rau hauv nruab nrab, thiab cov roj yuav nyob twj ywm rau sab saum toj. Koj muaj peev xwm xyaum ua tej yam nrog rau xim thiab kua, ua unimaginable muaj pes tsawg leeg. Piv txwv li, los ntawm kev ntxiv txawv cov nqi ntawm cov qab zib nyob rau hauv lub syrup, yuav tsum tau txais ib co kua ntawm txawv densities.

Kuaj thwmsim nyob rau hauv Science News for KIDS yuav ua tau heev uas tsis yog-boring. Cov spectacular thiab tsis tau tej yam yooj yim tricks los pab ntxias ib tug me nyuam rau txoj kev tshawb no ntawm science thiab tsuas yuav entertained rau ib tug rainy hnub.