Grade 7 Science French Immersion - Review Themes 1 Et 2

Explanation
The statement states that a natural structure is not built by humans. This means that a natural structure is one that occurs in nature without any human intervention or construction. Therefore, the correct answer is "VRAIE" (TRUE) as it aligns with the statement provided.

Explanation
Both a beaver dam and an igloo serve as shelters or protective structures. While a beaver dam is built by beavers using sticks, logs, and mud to create a barrier in a river, an igloo is a dome-shaped structure made of snow blocks, providing insulation and protection from the cold. Despite the different materials used, both structures serve the purpose of providing a safe and secure habitat for their respective inhabitants. Therefore, the statement that a beaver dam and an igloo have a similar function is true.

Explanation
The statement "Une charge est la masse supportée par une structure" is true. It means that a load is the weight or mass that is carried or supported by a structure. This is a correct definition of a load or a charge.

Explanation
Pleine

Explanation
Dans une structure à ossature, il existe effectivement un cadre interne qui soutient les différentes parties de la structure. Ce cadre interne est généralement constitué de poutres, de colonnes ou de poteaux qui sont conçus pour supporter le poids et les charges de la structure. Il agit comme une structure squelettique qui donne à la construction sa stabilité et sa résistance.

Explanation
Pleine

Explanation
The given statement is true. A composite material is made up of multiple materials that are bonded and pressed together. This combination of different materials allows the composite material to have enhanced properties compared to its individual components. The bonding and pressing process ensures that the materials are tightly joined, resulting in a strong and durable composite material.

Explanation
The statement "L'esthétique est la fonction d'une structure" is false. It translates to "Aesthetic is the function of a structure." However, aesthetics refers to the appearance or beauty of something, while function refers to the purpose or role of something. Therefore, aesthetics and function are two separate aspects and aesthetics cannot be considered the function of a structure.

Explanation
La symétrie, la forme, la couleur, la texture et le type de matériaux sont tous des éléments qui contribuent à l'esthétique d'une structure. Ces aspects visuels et sensoriels peuvent influencer notre perception et notre appréciation d'une construction.

Explanation
La symétrie est importante pour l'esthétique d'une structure car elle crée un équilibre visuel et harmonieux. Lorsque les éléments d'une structure sont symétriques, ils se répètent de manière équilibrée de part et d'autre d'un axe central, ce qui donne une impression de stabilité et de cohérence. La symétrie est souvent considérée comme esthétiquement plaisante car elle est naturellement attrayante pour l'œil humain. Par conséquent, il est vrai de dire que la symétrie joue un rôle important dans l'esthétique d'une structure.

Explanation
Tissé

Explanation
The statement "Les matériaux tissés et tricotés sont très flexibles" translates to "Woven and knitted materials are very flexible" in English. This statement is true because woven and knitted materials are known for their flexibility. These materials are made by interlacing or looping yarns together, which allows them to stretch and bend easily. This flexibility makes them suitable for various applications, such as clothing and upholstery, where comfort and movement are important.

Explanation
Le béton armé est un matériau composite constitué de béton et d'acier qui allie la résistance à la compression du béton à la résistance à la traction de l'acier

Explanation
A box of juice is typically made of laminated materials. Laminated materials are composed of multiple layers of different materials that are bonded together. This type of construction provides strength, durability, and helps to preserve the freshness of the juice inside the box. Therefore, the statement "Une boite de jus est faite de materiaux stratifies" (A box of juice is made of laminated materials) is true.

Explanation
The statement "Le ruban gomme est un exemple de joint mobile" translates to "The eraser tape is an example of a movable joint." In this context, the term "joint mobile" refers to a type of joint that allows movement or flexibility. The correct answer "Vraie" (True) indicates that the statement is accurate and the eraser tape can indeed be considered as an example of a movable joint.

Explanation
A knee and a door hinge are both examples of movable joints. In the case of a knee, it is a hinge joint that allows for movement and flexibility in the leg. Similarly, a door hinge is a type of joint that allows the door to swing open and closed. Both of these examples demonstrate the concept of movable joints, where two or more bones are connected and allow for movement.

Explanation
Un joint assemble effectivement les parties d'une structure. Un joint est une liaison mécanique qui permet de relier deux éléments de manière solide et durable. Il peut être utilisé dans différents domaines tels que la construction, l'automobile, l'aéronautique, etc. Les joints peuvent être réalisés à l'aide de différentes techniques telles que la soudure, le vissage, le collage, etc. Ils sont essentiels pour assurer la solidité et la stabilité d'une structure en permettant de relier efficacement ses différentes parties.

Explanation
Mobile

Explanation
The statement "Les formes emboîtées sont de joints rigides" translates to "Interlocking shapes are rigid joints" in English. The correct answer is "Vraie" which means "True". This means that the statement is correct and interlocking shapes do indeed form rigid joints.

Explanation
A margin of safety ensures that a structure is strong enough to withstand a greater load than what is expected. This means that the structure has been designed and built with extra strength and capacity to account for any unforeseen circumstances or variations in the expected load. This helps to prevent the structure from failing or collapsing under normal operating conditions or in case of unexpected events or accidents. Therefore, the statement "Un marge de sécurité garantit qu'une structure est assez solide pour supporter une charge plus grande que celle prévue" is true.