Sciences 9 – Module I: L’Univers NOM : _______________________
Théories sur l’origine de l’Univers
1. Définir les termes :
a. Galaxie______________________________________________________________________
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b. système solaire
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c. univers______________________________________________________________________
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d. étoile________________________________________________________________________
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e. rotation______________________________________________________________________
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f. révolution____________________________________________________________________
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g. raie spectrale _________________________________________________________________
h. axe_________________________________________________________________________
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i. parallaxe_____________________________________________________________________
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j. planetesimal__________________________________________________________________
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k. rayonnement électromagnétique
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l. spectroscope_________________________________________________________________
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m. triangulation__________________________________________________________________
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Notre univers s’est formé il y a __________________d’années.
Notre système solaire s’appelle _____________________________________________.
Notre système solaire s’est formé il y a __________________d’années.