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Les propriétés de liquide
Domaine Science Sous domaine Physique, Technologie et TIC
Section Primaire Option Primaire
Discipline Science Physique Classe 5ème
Matériel didactique Craie de couleur Auteur SCHOOLAP.COM
Objectif opérationnel A l'issue de la leçon, l'élève sera capable de distinguer correctement les caractères de liquide
Réference cfr.
Activité initiale

Rappel

Les solides sont resistants. Ils ont une forme propre. ils pèsent.

Motivation

Observation libre puis dirigée.

C'est de l'eau.

L'eau est à l'état liquide.

Annonce du sujet

Nous allons étudier aujourd'hui les propriétés des liquides.

Activité principale

Les liquides sont des fluides, c'est-à-dire les liquides ont une forme propre. La surface de l'eau tranquille est le même ou horizontale.

Les liquides se dilatent en volume sous l'action de la chaleur. Certains liquides sont inflammables.

Les liquides s'évaporent sous l'action de la chaleur.

Synthèse

Les liquides sont des fluides.

La surface de l'eau tranquille est horizontale.

Les corps liquides sont: l'eau, le pétrole, l'essence.

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