1. They will all be melted because heat is applied. For example, the butter. When butter is heated, its molecules get enough energy so that they can move around. When that happens, the butter melts into a liquid.
2. Yes, Heat makes many solids, especially metals, softer and easier to shape. As the temperature rises, most solids eventually melt to the liquid state. Heat can trigger chemical reactions between mixtures. In an oven, heat changes a cake mix from a sticky liquid into a fluffy solid.
3. When heat is added to a solid, the particles gain energy and vibrate more vigorously about their fixed positions, forcing each other further apart. As a result expansion takes place. Similarly, the particles in a liquid or gas gain energy and are forced further apart. The degree of expansion depends on the substance.
4. When materials are cooled, their atomic structure compresses due to the coldness which holds the atoms together.
5. Yes, it change into a solid
6. If we cool it down, it changes into a solid – ice. If we heat it up, it changes into a gas – steam. A particular material changes from being a solid to a liquid at a fixed temperature. This is its melting point.
7. in heating the properties are flexibility while cooling it turns harder like the ice
Answers & Comments
Answer:
1. They will all be melted because heat is applied. For example, the butter. When butter is heated, its molecules get enough energy so that they can move around. When that happens, the butter melts into a liquid.
2. Yes, Heat makes many solids, especially metals, softer and easier to shape. As the temperature rises, most solids eventually melt to the liquid state. Heat can trigger chemical reactions between mixtures. In an oven, heat changes a cake mix from a sticky liquid into a fluffy solid.
3. When heat is added to a solid, the particles gain energy and vibrate more vigorously about their fixed positions, forcing each other further apart. As a result expansion takes place. Similarly, the particles in a liquid or gas gain energy and are forced further apart. The degree of expansion depends on the substance.
4. When materials are cooled, their atomic structure compresses due to the coldness which holds the atoms together.
5. Yes, it change into a solid
6. If we cool it down, it changes into a solid – ice. If we heat it up, it changes into a gas – steam. A particular material changes from being a solid to a liquid at a fixed temperature. This is its melting point.
7. in heating the properties are flexibility while cooling it turns harder like the ice