{"id":511,"date":"2026-10-28T10:07:08","date_gmt":"2026-10-28T08:07:08","guid":{"rendered":"https:\/\/liceubolintin.ro\/eduhub\/?p=511"},"modified":"2026-10-28T10:07:08","modified_gmt":"2026-10-28T08:07:08","slug":"modelarea-impactului-ecologic-si-hidrodinamic-al-unei-mori-de-apa-prof-adriana-militaru","status":"publish","type":"post","link":"https:\/\/liceubolintin.ro\/eduhub\/2026\/10\/28\/modelarea-impactului-ecologic-si-hidrodinamic-al-unei-mori-de-apa-prof-adriana-militaru\/","title":{"rendered":"Modelarea impactului ecologic si hidrodinamic al unei mori de apa – Prof Adriana Militaru"},"content":{"rendered":"

Biologie \u0219i fizic\u0103\u00a0 \u00b7\u00a0 2026\u20132027<\/em>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0 Fi\u0219\u0103 de lucru \u00a0\u00a0<\/strong><\/p>\n

 <\/p>\n

Proiect experimental cu machet\u0103 din materiale reciclate<\/em><\/p>\n

 <\/p>\n\n\n\n\n\n
Elevi<\/strong><\/td>\nBalta Claudiu Mihai<\/p>\n

Toma Alexandru Gabriel<\/p>\n

Constantinescu Denis Mihai<\/p>\n

Coca Alin<\/td>\n<\/tr>\n

Clasa<\/strong><\/td>\na XII-a A<\/td>\n<\/tr>\n
Profesor coordonator<\/strong><\/td>\nMilitaru Adriana<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

 <\/p>\n

\u00a0\u00a0\u00a0Introducere<\/h1>\n

Moara de ap\u0103 folose\u0219te energia apei care curge pentru a \u00eenv\u00e2rti o roat\u0103. Ea schimb\u0103 \u00eens\u0103 \u0219i felul \u00een care curge r\u00e2ul \u0219i condi\u021biile de via\u021b\u0103 din ap\u0103. Construim o machet\u0103 din materiale reciclate \u0219i compar\u0103m apa dinainte de roat\u0103 (amonte) cu apa de dup\u0103 roat\u0103 (aval).<\/p>\n

\u00a0\u00a0Fizic\u0103<\/h2>\n

Apa \u021binut\u0103 la \u00een\u0103l\u021bime are energie poten\u021bial\u0103. C\u00e2nd cade pe linguri devine energie cinetic\u0103, iar roata o transform\u0103 \u00een energie mecanic\u0103 de rota\u021bie. Cu c\u00e2t apa cade de mai sus, cu at\u00e2t roata prime\u0219te mai mult\u0103 energie.<\/p>\n\n\n\n
\u00a0\u00a0Transformarea energiei<\/em><\/p>\n

Energie poten\u021bial\u0103\u00a0 \u2192\u00a0 energie cinetic\u0103\u00a0 \u2192\u00a0 energie mecanic\u0103<\/strong><\/p>\n

apa \u021binut\u0103 la \u00een\u0103l\u021bime\u00a0 \u2192\u00a0 apa care cade pe linguri\u00a0 \u2192\u00a0 roata se \u00eenv\u00e2rte<\/p>\n

P = \u03c1 \u00b7 g \u00b7 Q \u00b7 h<\/p>\n

\u03c1 \u2013 densitatea apei\u00a0 \u00b7\u00a0 g = 9,81 m\/s\u00b2\u00a0 \u00b7\u00a0 Q \u2013 debitul apei\u00a0 \u00b7\u00a0 h \u2013 \u00een\u0103l\u021bimea de c\u0103dere<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\u00a0\u00a0Biologie<\/h2>\n

C\u0103derea pe roat\u0103 amestec\u0103 apa cu aerul, a\u0219a c\u0103 apa prime\u0219te mai mult oxigen dizolvat. Oxigenul ajut\u0103 bacteriile aerobe s\u0103 descompun\u0103 substan\u021bele organice, adic\u0103 ajut\u0103 la autoepurarea apei. \u00cen schimb, st\u0103vilarul morii \u00eemparte r\u00e2ul \u00een dou\u0103 \u0219i \u00eempiedic\u0103 migra\u021bia pe\u0219tilor.<\/p>\n

\u00a0\u00a0\u00a0Materiale necesare<\/h1>\n\n\n\n
\u00a0\u00a0Din fi\u0219a de lucru<\/em><\/p>\n

\u2022\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 machet\u0103 func\u021bional\u0103 de moar\u0103 de ap\u0103, confec\u021bionat\u0103 de c\u0103tre elevi din materiale reciclate (linguri de plastic prinse pe un ax, un PET t\u0103iat, CD-uri, agrafe, s\u00e2rm\u0103);<\/p>\n

\u2022\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 dou\u0103 bazine \/ recipiente de plastic (unul pentru \u201eamonte\u201d \u0219i unul pentru \u201eaval\u201d);<\/p>\n

\u2022\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mostre de ap\u0103 din lac \/ r\u00e2u sau ap\u0103 curent\u0103.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Mai folosim: o sticl\u0103 cu mostra de ap\u0103, un recipient de plastic, un b\u0103\u021b de sus\u021binere, un termometru \u0219i h\u00e2rtie indicator de pH.<\/p>\n

\u00a0\u00a0\u00a0Montajul experimental<\/h1>\n

Figura 1. Apa turnat\u0103 din sticl\u0103 cade pe lingurile prinse de CD-uri, \u00eenv\u00e2rte roata \u0219i se adun\u0103 \u00een recipient.<\/p>\n

    \n
  1. Lipi\u021bi lingurile pe marginea unui CD, la distan\u021be egale, cu partea scobit\u0103 \u00een acela\u0219i sens.<\/li>\n
  2. Trece\u021bi un b\u0103\u021b de frig\u0103rui prin gaura CD-ului (axul) \u0219i prinde\u021bi-l cu s\u00e2rm\u0103 de b\u0103\u021bul de sus\u021binere din recipient.<\/li>\n
  3. Marca\u021bi o lingur\u0103 cu markerul, ca s\u0103 pute\u021bi num\u0103ra rota\u021biile.<\/li>\n<\/ol>\n

    \u00a0\u00a0\u00a0Experimentul<\/h1>\n\n\n\n
    \u00a0\u00a0Din fi\u0219a de lucru<\/em><\/p>\n

    Se m\u0103soar\u0103 efectul mecanic al ro\u021bii morii asupra chimismului apei. Se porne\u0219te \u201emoara\u201d, turn\u00e2nd ap\u0103 constant pe roat\u0103 timp de c\u00e2teva minute.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

      \n
    1. Nota\u021bi \u00een Tabelul 1 cum arat\u0103 apa din sticl\u0103 (amonte).<\/li>\n
    2. Turna\u021bi ap\u0103 constant pe linguri, \u021bin\u00e2nd sticla la 10, 20 \u0219i 30 cm, \u0219i num\u0103ra\u021bi rota\u021biile \u00eentr-un minut (Tabelul 2).<\/li>\n
    3. Nota\u021bi cum arat\u0103 apa adunat\u0103 \u00een recipient (aval) \u0219i compara\u021bi-o cu cea din sticl\u0103.<\/li>\n<\/ol>\n

      \u00a0\u00a0\u00a0Mini-raport<\/h1>\n

      \u00a0\u00a01. Ipoteze<\/h2>\n\n\n\n
      \u00a0\u00a0\u00centrebarea din fi\u0219a de lucru<\/em><\/p>\n

      Ce modific\u0103ri fizico-chimice va produce roata morii asupra calit\u0103\u021bii apei?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

       <\/p>\n

      Ne a\u0219tept\u0103m ca apa din aval s\u0103 aib\u0103 mai mult oxigen \u0219i un pH pu\u021bin mai mare, iar roata s\u0103 se \u00eenv\u00e2rt\u0103 mai repede c\u00e2nd apa cade de mai sus.<\/p>\n

      \u00a0\u00a02. \u00cenregistrarea datelor<\/h2>\n

      Tabelul 1. Cum arat\u0103 apa \u00eenainte \u0219i dup\u0103 roat\u0103<\/p>\n\n\n\n\n\n\n\n\n\n\n
      Ce observ\u0103m<\/td>\n\u00cenainte (\u00een sticl\u0103)<\/td>\nDup\u0103 roat\u0103 (\u00een recipient)<\/td>\n<\/tr>\n<\/thead>\n
      Culoare<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
      Limpezime<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
      Bule de aer, spum\u0103<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
      Miros<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
      Temperatura (\u00b0C)<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
      pH (h\u00e2rtie indicator)<\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Tabelul 2. Rota\u021biile ro\u021bii<\/p>\n\n\n\n\n\n\n\n
      \u00cen\u0103l\u021bimea de la care cade apa<\/td>\nRota\u021bii \u00eentr-un minut<\/td>\nObserva\u021bii<\/td>\n<\/tr>\n<\/thead>\n
      10 cm<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
      20 cm<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
      30 cm<\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u00a0\u00a03. Concluzie ecologic\u0103<\/h2>\n\n\n\n
      \u00a0\u00a0Concluzia din fi\u0219a de lucru<\/em><\/p>\n

      Moara de ap\u0103 fragmenteaz\u0103 habitatul \u0219i cre\u0219te oxigenarea \u0219i autoepurarea apei.<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Tabelul 3. Efectele morii de ap\u0103 asupra r\u00e2ului<\/p>\n\n\n\n\n\n\n\n
      Efecte pozitive<\/td>\nEfecte negative<\/td>\n<\/tr>\n<\/thead>\n
      Cre\u0219te oxigenarea apei prin c\u0103dere \u0219i turbulen\u021b\u0103.<\/td>\nSt\u0103vilarul fragmenteaz\u0103 habitatul \u0219i blocheaz\u0103 migra\u021bia pe\u0219tilor.<\/td>\n<\/tr>\n
      Accelereaz\u0103 autoepurarea apei.<\/td>\nSedimentele se adun\u0103 \u00een amonte.<\/td>\n<\/tr>\n
      Produce energie regenerabil\u0103, f\u0103r\u0103 poluare.<\/td>\nApa din spatele st\u0103vilarului se \u00eenc\u0103lze\u0219te \u0219i are mai pu\u021bin oxigen.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Ce am observat dup\u0103 test: ___________________________________________________________________<\/p>\n

      _____________________________________________________________________________________________<\/p>\n","protected":false},"excerpt":{"rendered":"

      Biologie \u0219i fizic\u0103\u00a0 \u00b7\u00a0 2026\u20132027\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0 Fi\u0219\u0103 de lucru \u00a0\u00a0   Proiect experimental cu machet\u0103 din materiale reciclate   Elevi Balta Claudiu Mihai Toma Alexandru Gabriel Constantinescu Denis Mihai Coca Alin Clasa…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-511","post","type-post","status-publish","format-standard","hentry","category-curricular"],"_links":{"self":[{"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/posts\/511","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/comments?post=511"}],"version-history":[{"count":1,"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/posts\/511\/revisions"}],"predecessor-version":[{"id":512,"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/posts\/511\/revisions\/512"}],"wp:attachment":[{"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/media?parent=511"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/categories?post=511"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/liceubolintin.ro\/eduhub\/wp-json\/wp\/v2\/tags?post=511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}