IPA Kelas 5 Tema 7 By Letme

Minyak adalah salah satu benda yang berbentuk cair.

Perubahan wujud dari padat ke cair disebut mencair. Ketika suatu benda padat mengalami peningkatan suhu, partikel-partikelnya mulai bergerak lebih cepat dan jarak antar partikelnya menjadi lebih besar. Akibatnya, benda padat tersebut berubah menjadi cair. Proses ini disebut mencair.

The given statement "merebus air contoh menguap" is in Indonesian language and it translates to "boiling water is an example of evaporation". This statement is true because when water is boiled, it reaches its boiling point and starts to evaporate, converting from a liquid state to a gaseous state. Evaporation is the process by which a liquid changes into a gas at a temperature below its boiling point, and boiling is a specific type of evaporation that occurs when a liquid reaches its boiling point. Therefore, boiling water is indeed an example of evaporation.

The statement is true because the occurrence of water on the surface of leaves in the morning is due to the process of dew formation. During the night, when the temperature drops, the moisture in the air condenses and forms dew on surfaces such as leaves. This phenomenon is known as dew deposition or dew formation. Therefore, it is correct to say that the appearance of water on the surface of leaves in the morning is due to the occurrence of dew.

The statement "Benda padat volumenya berubah" translates to "The volume of a solid object changes." The correct answer is False because the volume of a solid object remains constant unless it undergoes a physical or chemical change, such as melting or dissolving. In general, solids have a fixed volume and shape.

Perubahan wujud dari cair ke padat disebut membeku. Ketika suatu zat cair mengalami penurunan suhu yang cukup rendah, partikel-partikel zat tersebut mulai bergerak lebih lambat dan saling tertarik satu sama lain. Akibatnya, zat cair tersebut berubah menjadi zat padat dengan struktur yang lebih teratur dan rapat. Proses ini disebut membeku dan merupakan salah satu perubahan wujud zat yang umum terjadi dalam kehidupan sehari-hari.

The statement "Benda cair berubah wujud sesuai wadahnya" means that a liquid substance takes the shape of its container. This is a true statement as liquids do not have a fixed shape and can adapt to the shape of the container they are poured into. This phenomenon is known as the property of fluidity, where the particles in a liquid are free to move and flow, allowing them to take the shape of their container.

Gases do indeed occupy space. Unlike solids and liquids, gases have no fixed shape or volume and can expand to fill any container they are placed in. This is because gas particles are in constant motion and spread out to fill the available space. Therefore, it is correct to say that gases occupy space.

Perubahan wujud dari cair ke gas disebut menguap. Ketika suatu zat cair dipanaskan, energi panas yang diberikan kepada zat tersebut menyebabkan partikel-partikel zat bergerak lebih cepat. Akibatnya, ikatan antar partikel menjadi lebih lemah dan partikel-partikel tersebut menjadi lebih terpisah. Proses ini mengakibatkan zat cair berubah menjadi gas. Proses menguap ini merupakan salah satu bentuk perubahan wujud zat dari cair ke gas.

The statement "Peristiwa membeku contohnya lilin meleleh ketika dinyalakan" translates to "An example of freezing is a candle melting when lit." However, this statement is incorrect. Freezing refers to the process of a substance changing from a liquid to a solid state, typically due to a decrease in temperature. In the given example, the candle is actually melting, which is the opposite of freezing. Therefore, the correct answer is False.

The correct answer is "Mengembun". This is because when a gas changes into a liquid, it is called condensation or "mengembun" in Indonesian. This process occurs when the gas cools down and loses energy, causing the molecules to come closer together and form a liquid state.

The statement "Benda gas volumenya tetap" translates to "The volume of a gas remains constant." This statement is false because the volume of a gas can change depending on various factors such as temperature and pressure. According to the ideal gas law, the volume of a gas is directly proportional to its temperature and inversely proportional to its pressure. Therefore, if either the temperature or pressure of a gas changes, its volume will also change.

The correct answer is "Menyublim". This is because "menyublim" is the Indonesian term for "sublimation", which refers to the change of state from solid to gas without passing through the liquid state. This process occurs when a solid substance is heated and the particles gain enough energy to directly transition into a gaseous state.

The statement "Peristiwa kapur barus mengecil contoh menguap" translates to "The event of camphor shrinking is an example of evaporation." The correct answer is False because the event of camphor shrinking is actually an example of sublimation, not evaporation. Sublimation is the process in which a solid directly changes into a gas without going through the liquid state.

The given correct answer, "mengkristal," refers to the process of changing from a gas state to a solid state. This process occurs when the gas molecules slow down and come together to form a solid structure, usually in response to a decrease in temperature or an increase in pressure. During this process, the gas molecules arrange themselves in a regular pattern, forming a crystalline solid.