Fases da lua e Sistema solar (exercícios de fixação).

Revisão de Ciências (fases da Lua, sistema solar)

1- Explique as fases da lua e desenhe cada fase ao lado.
_______________________________________________
_______________________________________________
_______________________________________________
_______________________________________________
_______________________________________________
_______________________________________________
_______________________________________________
_______________________________________________

2- Explique o que é período sideral.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

3- Quais são os astros existentes no sistema solar? Dê características de cada um.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

4- Qual a importância das estações do ano para nossa vida?
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

5-Escreva as características do Planeta Terra.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

6- Sabemos que de 4 em 4 anos acontece o ano bissexto.

a) Explique por que isso acontece.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

b) O que acontece com as pessoas que nascem dia 29 de fevereiro?

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

7- Diferencie a teoria do geocentrismo da teoria do heliocentrismo.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

8- O que aconteceu com o Planeta Plutão?

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________