Maexamples emaAlkali metals anoti lithium (Li) , Sodium(Na) , Potassium(k) , rubidium(Rb) , ceasium(Cs).MaAlkali metals futi anelowest melting points sange sodium 98°C.Inokwanisa kuita yakaiswa mumvura inenge yatova anew compound.

Chihoboya. Kune izwi rinoti kuhobodza rinoreva kuonza muviri - (Make thin or emaciated). Zvichida izwi iri rinotodzana nezita rinonzi Chihoboya?

Mamwe mashoko anokwanisa kushanda kureva membranne ndeanoti: nhengopfunha kana mudzivo wenhengo. Shoko rokuti mudzivo (boundary) rinoreva pamuganhu panoperera nhengo, mutumbi kana kana chinhu chiri kucherechedzwa. Saka apa zvoreva kuti membrane inenge iri muganhu wenhengo. imwe kana muganhu unoganhura nhengo kubva kune dzimwe nhengo. Pahuwandu kunenge kuchinzi nhengodzivo zvakare.

Vanhu vari pakati pemamiriyoni 17 kusvika ku25 vane utachiona hwechirwere cheriver blindness, uye vanenge mamiriyoni 0.8 havachanyatsooni zvakanaka. Utachiona uhwu hunonyanya kutapukira munyika dzesub-Saharan Africa, kunyange zvazvo pane vamwe vakatapukirwa kuYemen nenzvimbo dzakataramuka dzeCentral neSouth America. Muna 1915, chiremba anonzi Rodolfo Robles ndiye akatanga kuona kuti hwemusi iri ndiro rinoparira chirwere chemaziso. World Health Organization yakanyora pasi chirwere ichi sechirwere chakashayirwa hanya chekunzvimbo dzinopisa.

Gonyonhatu yemutwi: Mativi matatu egonyonhatu iri anopiwa mazita akasiyana zvichibva pamamiriro akaita gonyonhatu. Kune mativi maviri anosvika pamukwava une gonyo ye 90o; pamativi aya rokutanga rikanzi hwaro(adjacent), repiri richabva ranzi darisanwa (opposite side). Divi guru rine nhambwe yakareba kupfura mamwe rinonzi muzendami (hypotenuse) nokuti rinoita sokunge rakazendamiswa rakatsigirwa kuhwaro nemutwi.

Mumarudzi akasiyana vakadzi vane mabasa akasiyana zvishoma, asi mutsika zhinji vakadzi ndivo vanotarisirwa kuita mabasa ekubika; kuchenesa mumba nokutarira vana vadiki, nokushongedza mhuri.

Munatsi zvinoreva nzvimbo inoitwa mabasa ekuchenesa simbi kuchibviswa manyara asingadiwe musimbi iyi. Simbi dzinonatswa nenzira dzakasiyana dzinosanganisira: kunyautsa nemoto; kunyunguditsa nekupatsanura zvine huduma hwakasiyana; kuchenesa nenzira dzinotsauranisa nemagetsi.

Pakutanga ndichinyora ndaiti ndiri kunyora zvitsvene asi zvino mupfungwa nemoyo zvaramba kugamuchirika. Ini ndakazvinyora ndini ndabvisa nokuti mumoyo mangu ndaona zvisingawirirane netsika dzedu sevanhu uye neshoko raMwari. Anenge ada kudzorera chinyora zvako zvepfungwa dzako, vanobvunza vagobvunza iwe, vanotonga vagotonga iwe. Ini ndabuda munyaya yacho, handichada kuzvipamhazve. Vanhu takatarirwa kurarama kamwe, sure kwazvo kunouya rufu nekutongwa naMwari. Kana ndimiwo makambozvinzva kupi mutsika dzekwedu kuti nyaya dzakadai dzinotaurwa paruzhinji kudai - anenge adzorera nyaya yachene yatosarira iwe.

Shoko rokuti yeuka (remember) rinoreva kurangarira chiitiko kana chinhu chakaitika kana chawakaona kare. Vamwe vatauri vanoti kuchechuka, kana kutondera.