EXERCÍCIOS de RECUPERAÇÃO de CIÊNCIAS Professor (a) da Disciplina: Yara Data: / /15 Aluno (a): Ano: 9º ____ Ensino Fundamental Nº: Período: Matutino 2º TRIMESTRE Nota: Valor da avaliação: 10,0 ROTEIRO: - Reveja e refaça todos os exercícios abordados. - Releia os textos e anote suas dúvidas sobre a teoria. - Esclareça suas dúvidas no plantão ou com a professora. CONTEÚDO: - Laboratório - leite - Estrutura atômica - Modelos atômicos - Configuração eletrônica - igualdades atômicas Separação de misturas 1) Defina cientificamente as palavras abaixo: a) eletrosfera ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ b) caseína e albumina. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 1 c) átomo ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ d) Configuração eletrônica ________________________________________________________________________________________ ________________________________________________________________________________________ 2) Diferencie prótons de elétrons. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 3) Utilize – se de exemplos da vida cotidiana para exemplificar fenômenos físicos e químicos. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 4) Descreva os processos abaixo de separação de misturas: a) catação. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ b) separação magnética ________________________________________________________________________________________ ________________________________________________________________________________________ c) Filtração ________________________________________________________________________________________ ________________________________________________________________________________________ _____________________________________________________________________________________ 2 d) Peneiração _____________________________________________________________________________________ _____________________________________________________________________________________ __________________________________________________________________________________ 5) Descreva o experimento do leite realizado em laboratório ________________________________________________________________________________________ ________________________________________________________________________________________ _____________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 6) Explique o que são isótopos e de exemplos. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 7) Explique o que são elementos isóbaros. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 8) Observe o esquema abaixo e faça o que se pede: 3 a) Quem é o autor do modelo representado na figura acima? _______________________________________________________________________________________ b) Defina átomo. ________________________________________________________________________________________ ________________________________________________________________________________________ c) Identifique as regiões A e B e diferencie – as: ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ d) Identifique as partículas 1,2 e 3 e determine a carga elétrica que possuem. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 9) Defina número atômico e número de massa de um átomo . ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 10) Escreva sobre os modelos atômicos de Dalton e de Thomson. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 11) Diferencie os níveis e os subníveis da eletrosfera de um átomo. ________________________________________________________________________________________ ________________________________________________________________________________________ 4 ________________________________________________________________________________________ ________________________________________________________________________________________ 12) Diferencie e exemplifique elementos isóbaros, isótonos e isótopos. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 13) Escolha cinco elementos representativos da tabela periódica, faça suas configurações eletrônicas e localize – os na tabela periódica. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 14) Diferencie os elementos representativos dos elementos de transição da tabela periódica. ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 5
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