"Domin ba tare da ruwa ba a wurin, kuma ba abin da ya shafi ..." an kalli a cikin fim mai kyau. Lalle ne, ba tare da ruwa ba, rayuwa a duniya ba za ta yiwu ba. Ana buƙatar ruwa don dukan abubuwa masu rai: shuke-shuke, dabbobi, da mutum. Ruwa yana rufe fiye da 60% na fuskar duniyarmu, ruwa yana da kashi 65% na jikin mutum. Ruwa - abu mai mahimmanci, wanda zai iya ɗaukar nauyin jirgin ruwa inda aka samo shi. Zai iya zama a cikin jihohin uku: m, ruwa da kuma rashin lafiya. Ayyukan sha'awa zasu zama hanya mai kyau ga 'yan makaranta don su fahimci ruwa, tare da dukiyarta da damarsa. Don gudanar da gwaje-gwaje tare da ruwa, ba buƙatar kayan aiki mai rikitarwa ko ƙara yawan matakan tsaro ba , yawancin kayan samfurin da ke samuwa ga kowa.
Neman gwagwarmaya da ruwa ga yara
Don haka, bari mu fara gwaji.
Ƙwarewa da ruwa da gishiri
Don kwarewa, muna buƙatar:
- ruwa;
- gilashi;
- gishiri gishiri.
Kwarewa
- Cika gilashi da ruwa zuwa gefe.
- A hankali yana motsa abinda ke ciki na gilashi tare da ƙananan waya ko toothpick, za mu fara zuba gishiri cikin shi.
- A lokacin gwajin, yana nuna cewa a cikin gilashin ruwa za ka iya ƙara game da rabin gilashin gishiri ba tare da ruwa ba.
Bayani
Lokacin da ruwa yake cikin yanayin ruwa, akwai sarari tsakanin sararin kwayoyin, wanda ya cika da kwayoyin gishiri. Lokacin da dukkanin yankuna kyauta suka cika da kwayoyin gishiri, zai daina rushewa a cikin ruwa (bayani zai kai saturation) kuma ruwan zai zubar da gefen gilashi.
Ƙwarewa da ruwa da takarda
Don kwarewa, muna buƙatar:
- almakashi;
- fensir ko alamomi;
- m;
- takarda mai launi daban-daban;
- damar iyawa - bashi ko tire;
- ruwa.
Kwarewa
- Yanke takarda a cikin murabba'i tare da gefe na 15 cm. Nada murabba'i a rabi kuma ka yanke furanni daga gare su. Mun tanƙwara petals a cikin furanni.
- Sanya furanni cikin akwati na ruwa.
- Bayan dan lokaci, furanni zasu fara bude lambunsu. Lokacin da yake dauka yana dogara ne akan nauyin takarda.
Bayani
Fuskantar takardun fure fara daga gaskiyar cewa an zubar da nau'i na takarda da ruwa, takarda ya zama mai karfin gaske kuma yana daidaitawa a ƙarƙashin nauyin kansa.
Samu tare da kwallon da ruwa
Don kwarewa, muna buƙatar:
- Jirgin iska;
- gilashin gilashi;
- ruwa;
- kettle.
Kwarewa
- Cika kwallo da ruwan sanyi don kada ya iya shiga cikin wuyansa na gilashi lita uku.
- Muna zafi da ruwa a cikin kwano da kuma cika shi da gilashi.
- Mu bar ruwa a cikin kwalba har dan lokaci har sai an warwatse ganuwar gilashi.
- Zuba ruwa daga cikin kwalba kuma saka kwallon a wuyansa.
- Muna kallon kwallon fara "shayar" a cikin kwalba.
Bayani
Bayan ganuwar gilashi ya warke kuma an zuba ruwa daga ciki, sai su fara ba da zafi zuwa iska a cikin kwalba. Jirgin, kamar yadda ya kamata, ya fara zafi kuma ƙwayoyinsa sun motsa sauri. Idan muka rufe wuyan tulu tare da ball, zamu haifar da rikici cikin ciki da waje. Saboda haka, an jefa kwallon cikin kwalba.
Ƙwarewa da ruwa da toothpicks
Don kwarewa, muna buƙatar:
- akwati da ruwa;
- sabulu;
- mai tsabta sugar;
- katako na katako.
Kwarewa
- Mun sanya 'yan kwance a cikin ruwa na ruwa.
- A tsakiyar akwati, saka wuri mai kyau sugar kuma bayan 'yan gajeren lokaci zamu lura da yadda dodoran zasu fara motsawa
gefen sukari. - Saka sabulu a cikin tsakiyar akwati kuma ka duba yadda yatsun hakuri suka fara motsawa a cikin shugabanci.
Bayani
Tsari mai ladabi ya sha ruwa kuma ya haifar da kwarara zuwa cibiyar tsakiyar akwati. Soap yana da muhimmanci rage yanayin tashin ruwa a tsakiya na akwati, kuma ana yin tsutsawa a cikin yankunan da ke dauke da tashin hankali.
Har ila yau, yara za su kasance masu sha'awar gwaje-gwajen akan girma lu'ulu'u .