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MATIÈRE ET ÉNERGIE
Qu’est-ce que la matière?
•La matière c’est tout ce qui a une masse et un volumen.
•Tous les êtres vivans et les objets inanimés sont composés de matière.
LA MASSE
•La masse c’est la quantité de matière d’un objet.
•La masse se mesure en grammes (gr) et kilogrames (kg) et avec une
balance.
VOLUME
•Le volume, c’est la quantité d’espace ocupé par un objet.
•Le volume se mesure en millilitres (ml) et litres 1000ml = 1l
et avec une éprouvette.
LES TROIS ÉTATS DE LA MATIÈRE
La matière peut être solide, liquide ou gazeuse.
•Les solides ont une forme et un volume fixes.
•Les liquides n’ont pas de forme fixe. Ils ont un volume fixe.
•Les gaz n’ont ni forme ni volume fixe.
Solide. Liquide. Gaz.
TROIS ÉTATS DE LA MATIÈRE
Forme Volume Exemple
Solide Fixe Fixe Un libre, une
chaise….
Liquide Pas de forme fixe Fixe De l’eau, du lait….
Gaz Las de forme fixe Las de forme fixe L‘air, l’oxigene….
QU’EST-CE QU’UN MATÉRIAU
•Un matériau ou substance est une matière définie par des
caractéristiques spécifiques.
•Exemples: le bois, le plastique……..
LES DEUX TYPES DE MATÉRIAUX
•Les matériaux naturels proviennent
directement de la nature.
Les matériaux artificiels proviennent
de la transformation des matériaux
naturels.
À QUOI SERVENT LES MATÉRIAUX?
Matériaux Naturel/ artificiel Origine Exemples
d'utilisation
Bois Naturel Arbres Muebles, papier
Plastique Artificiel Pétrole Jouets
Fibres Naturel et artificiel Plantes, animaux et
pétrole
Vêtements
Verre Artificiel Sable Vitres
Céramique Artificiel Argile Pots, assiettes
Métaux Artificiel Minerais Outils, voitures

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matériaux POWER POINT CIENCIAS.pdf

  • 2. Qu’est-ce que la matière? •La matière c’est tout ce qui a une masse et un volumen. •Tous les êtres vivans et les objets inanimés sont composés de matière.
  • 3. LA MASSE •La masse c’est la quantité de matière d’un objet. •La masse se mesure en grammes (gr) et kilogrames (kg) et avec une balance.
  • 4. VOLUME •Le volume, c’est la quantité d’espace ocupé par un objet. •Le volume se mesure en millilitres (ml) et litres 1000ml = 1l et avec une éprouvette.
  • 5. LES TROIS ÉTATS DE LA MATIÈRE La matière peut être solide, liquide ou gazeuse. •Les solides ont une forme et un volume fixes. •Les liquides n’ont pas de forme fixe. Ils ont un volume fixe. •Les gaz n’ont ni forme ni volume fixe. Solide. Liquide. Gaz.
  • 6. TROIS ÉTATS DE LA MATIÈRE Forme Volume Exemple Solide Fixe Fixe Un libre, une chaise…. Liquide Pas de forme fixe Fixe De l’eau, du lait…. Gaz Las de forme fixe Las de forme fixe L‘air, l’oxigene….
  • 7. QU’EST-CE QU’UN MATÉRIAU •Un matériau ou substance est une matière définie par des caractéristiques spécifiques. •Exemples: le bois, le plastique……..
  • 8. LES DEUX TYPES DE MATÉRIAUX •Les matériaux naturels proviennent directement de la nature. Les matériaux artificiels proviennent de la transformation des matériaux naturels.
  • 9. À QUOI SERVENT LES MATÉRIAUX? Matériaux Naturel/ artificiel Origine Exemples d'utilisation Bois Naturel Arbres Muebles, papier Plastique Artificiel Pétrole Jouets Fibres Naturel et artificiel Plantes, animaux et pétrole Vêtements Verre Artificiel Sable Vitres Céramique Artificiel Argile Pots, assiettes Métaux Artificiel Minerais Outils, voitures