French science test review on space
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Porquoi c'est tres difficile pour un humain de survivre dans l'espace? | sans air, sans eau, sans nourriture, tres froid, tres chaud, beaucoup de radiations et la gravite varie beaucoup
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| Le Big Bang | c'est la theorie sur la formation de l'Univers
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| Quelle age et l'Univers? | 13,7 milliards d'annees (13.7 billion years)
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| une unite astronomique (1 UA) | C'est la distance entre la Terre et le Soleil
(150 milliards km)
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| une annee-lumiere (1 a.l.) | 9,460 milliards de km
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| light speed | 300,000 km/sec
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| une planete | est un corps celeste en forme de sphere et qui tourne autour d'une etoile
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| une lune | ou satellite naturel, est un sorps celeste qui tourne autour d'une planete
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| rotation | quand un objet fait un tour sur lui-meme (when an object turns about itself)
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| la rotation de la terre | 24 heures (1 day)
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| revolution | une orbit complete autour d'un autre objet (one orbit completely around another object)
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| la revolution de la terre autour la soleil | un annee (365,25 jours)
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| notre galaxie | la Voie lactee (the Milky way)
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| notre galaxie contient environ | 200 000 millions d'etoiles avec un diametre a 80 000 annees-lumiere
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| L'etoile la plus proche de nous se trouve (how far away is the nearest star) | 4,3 a.l. (called proxima centauri) (it would take us 19 000 years to reach it)
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| La galaxie la plus proche de nous | Andromede 2,55 millions a.l. (it would take us 11 million years to reach it)
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| le systeme solaire | est un groupe de corps celestes en orbite autour d'une etoile
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| dans le notre systeme solaire | le soleil, 8 planetes, 5 planetes naines (dwarf), 60 lunes, milliers d'asteroides, de meteoroides et de cometes
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| gravite | une force qui attire les objects les uns vers les autres (a force that attracts all objects to each other)
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| gravite est influncee par (gravity is affected by) | la masse des objects (the mass of the objects)
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| Quelle ne change pas avec les gravite - poids ou masse | masse never changes because of gravity...but your weight does. You weigh more on Jupiter but your mass is the same.
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| centrifugal force | keeps the earth from being pulled into the sun by the sun's gravity.
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| meteoroides | un morceau de roche (piece of rock)0-10m qui flotte dans l'espace
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| meteore | etoile filante (falling star) - un meteoroide qui brule en tonbant dans l'atmosphere
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| meteorite | un meteore qui frappe la Terre
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| un asteroide | est un grand meteoroide
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| les cometes | sont faites de glace et de poussiere (made of ice and dust)
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| cometes a deux types d'orbites | une orbite courte (200 years or less from the Kuiper belt) et une orbite longue (30 million years from the d'Oort cloud)
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| the perseid meteor shower (every summer between 9-13 August) | happens because Earth traverse de la orbite de la comete Swift-Tuttle
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| l'equinoxe du printemps | 21 mars - length of night and day the same
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| le solstice d'ete | 21 juin - day is longer than night
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| l'equinoxe d'automne | 21 septembre - length of night and day the same
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| le solstice d'hiver | 21 decembre - night is longer than day
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| les eclipses solaire | when the new moon comes between the sun and the earth, blocking the sun's light. Rare - does not happen often.
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| les eclipse lunaires | la Terre est placee entre la lune et le soleil - the earth is between the sun and moon - the moon is blocked from the sun's light - the moon appears red.
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| Ou est l'etoile formee? | dans les nebuleuses
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| nebuleuses | des grand nuages de gaz (giant gas and dust cloud in space)
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| fusion nucleaire (nuclear fusion)- the heart of a star | happens when a large quantity of hydrogen gathers together in a nebula - the gravity increases and the pressure and heat force the hydrogen atoms to combine into helium atoms
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| fusion nucleaire | produces the heat (chaleur), light (lumiere) and the radiation of the sun
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| le soleil | our sun is a yellow, medium star 1.4 million kms around
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| sun facts | 4.6 milliards d'annees
compose d'hydrogen et helium
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| sun surface temperature | 6000 degrees celsius
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| sun core (center) temperature | 15 million degrees celsius
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| constellation | est un groupe d'etoiles that forms an image
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| zodiaque | a group of 12 constellations (used by crazy people to tell the future)
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Created by:
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