Akusingawo onke amazwe asebenzisa laa magama xa echaza laa maqela amapolisa. E-United Kingdom, umzekelo, amagosa amapolisa azulazulayo enza isebe le-uniform branch"", ngeli lixa abachuphi bona besebenza ngaphakathi kwi-CID (""Isebe elijongene nokuphanda ngolwaphulo mthetho""). Amapolisa e-uniforms, ezixhobo nezendlela ekusetyenzwa ngazo angaguquka ngakumbi, kuxhomekeke ngokwelizwe elo. Kwezinye iindawo, amaqela amapolisa aqeqeshelwe imisebenzi ekhethekileyo enjengokusebenza ngobundlobongela, okanye xa imeko imbi kakhulu.

Izityalo ezikhula kwimozulu engani mvula njengasentlango zinamagqabi ambalwa, angangabikho kwa ukubakho loo magqabi kwezinye izityalo, kwaye angazigcinela amanzi xa imvula ikhe yana. Uqhelana kwazo nomhlaba othile kunciphisa ukungabikho kwamanzi. Izityalo ezikhula kwiindawo ezinomthunzi zinamabhakubhaku amagqabi atsho athi ngokotha ilanga akhongozele imitha yelanga kangoko anakho, okanye akekelele ngaselangeni.

Eyona nto yakhelwa kuyo nesisiseko se-element ibizwa ngokuba yi-atom. I-atom sisiseko sokwakhela nesisesona sakhe sasincinane kangangokuba xa ufuna ukuyibona ungayisika i-element ungakhange ude ube uyayicukuceza (uyijike ibe yi-element ekhaphukhaphu, umzekelo ngenuclear fission okanye ngeradioactive decay). I-chemical compound yi-substance eyenziwe ngee-elements ezimbini nangaphezulu. Kwi-compound, ii-atoms ezimbini nangaphezulu zithi zimanyane zenze i-molecule. Intlantsana yothulu okanye intwana yeqabaza lento engamanzi eli libonwa ngamehlo lenziwe nezigidi ngezigidi okanye ngezigidigidi zezi molecules. Imixube ziisubstances apho ii-chemicals are zixutywe khona kodwa zibe zingenantshukumo ziyenzayo okanye ibonakalayo. Umzekelo ngowaxa kudityaniswa isanti netyuwa. Oku kunokujikwa kwakhona kwenziwe ityuwa nesanti ngokwahlukana kwazo. Ii-Chemical compounds zitshintshwa yi-chemical reaction. Umzekelo ingakukutshisa i-sodium bicarbonate, i-baking powder le siyaziyo. kugalelwa amanzi, i-carbon dioxide, kunye nesodium carbonate. Lo mxube awunakujikwa okanye ezi zinto azinakwahlukaniswa.

Ibhokisi ikwathetha i-rectangle, umzekelo, ibhokisi esebenziseka lula neqhelekileyo. Kodwa ii-rectangles zibizwa ngokuba zii-rectangles, igama elithi bhokisi kukucacisa ubuni bento, okanye i-perimeter ye-rectangle.

Kwa-fiziki, i-force kukutyhalwa okanye ukutsalwa okutshintsha okanye okudla ngokutshintsha into ebi imile okanye inqumamile okanye ihamba ngendlela enye efanayo okanye akukutshintsha kwendlela ebekuhamnjwa ngayo okanye indlela emile ngayo loo nto ithile. Amandla enza okokuba izinto zihambe ngesantya esiphezulu, abe ke ngoko ongeza kuxinzelelo, tshintsha umkhondo wendlela ehamba ngayo. hange direction, okanye kuctshintshe indlela emile ngayo loo nto. Amandla alinganiselwa ngee- Newtons. (N).