Prática do CHULÉ
Autor: Biologando | Publicado: 2012-07-01T10:58:00-07:00

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CHULÉ

Interessante é a prática de como
produzir chulé. Os pés possuem mau cheiro quando fungos e bactérias crescem em
nossa pele. Você lança a questão: Por que temos mau cheiro nos pés? Vamos
investigar? Parte dessa aula prática é realizada em casa.

Material:

Vidro de boca larga limpo

1 envelope de gelatina incolor

1 colher de chá de açúcar

1/2 xícara de água

cotonetes

1 panela

meia usada no dia.

Procedimento: (em casa)

Ferver a água, coloque a gelatina
o açúcar, dissolver e colocar a mistura no vidro esfriar, tampar e deitar o
vidro. Levar para a geladeira. (deixar o vidro deitado). Quando a gelatina
endurecer, tirar a meia que usou durante o dia, passar no pé, entre os dedos,
um cotonete e depois esfregar na gelatina&nbsp; preparada. Fechar o vidro e
deixar em local escuro por 4 dias. Observe o vidro e anote qualquer modificação
na cultura (aspecto, sulcos, coloração diferente). Levar o vidro sem abrir para
a escola. Com orientação do(a) prof(a) vocês vão abrir o vidro com cuidado, sem
tocar na gelatina, não inspirar. Com movimentos da mão, leve o ar ao nariz.

Relatório:

1.Objetivo:



2.Responda;

a)Ocorreu alguma mudança depois
de 4 dias? Relate.

b)Tem cheiro? Especifique.

c)Pesquisar qual a bactéria que
está nos pés.

d)Mais o que você observou?

e)Tem fungos?

f)Qual a função da gelatina?

g)Fazer uma lâmina por equipe
para observação. Desenhar o que estão observando.



3.Conclusão: (individual e em
grupo)

O mau cheiro é o coco das
bactérias que se empaturrou de ácidos graxos.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Você faz o fechamento da aula em
cima das conclusões e questionamentos dos alunos e outras 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;questões oportunas.