A metal cup will generally keep hot water hotter for longer compared to a paper cup. Metal is a better insulator than paper, so it helps to retain heat more effectively.
No, paper will not keep water cold for the longest time. A metal cup will keep water the same temperature for the longest time. I know this because I did a science experiment about this but instead of cold water I used hot, which won't really make a difference. The next would be glass then paper.
Polystyrene (especially the expanded "Styrofoam (R)" type) is a good insulator. Metals are good conductors of heat.The insulating cup will maintain a greater heat differential than the conductor so if there is a liquid in the cup that is at a greater temperature than the surroundings, the metal cup will loose more heat than the polystyrene cup.
No, Sprite cannot dissolve a paper clip. Sprite is a carbonated soft drink consisting mainly of water, sugar, and carbon dioxide, which are not strong enough to dissolve metal like a paper clip.
The force of inertia keeps water in a bucket when you swing it.
Wood is more buoyant than metal because wood has a lower density than metal. Buoyancy is a result of the object's density compared to the density of the fluid it is in. Since wood is less dense than metal, it displaces more water and experiences an upward buoyant force that keeps it afloat.
paper
No, paper will not keep water cold for the longest time. A metal cup will keep water the same temperature for the longest time. I know this because I did a science experiment about this but instead of cold water I used hot, which won't really make a difference. The next would be glass then paper.
polystyrene
white
styrofoam, but warning fammable and unsafe for the environment!
no. because they are solid metal.
When a metal oxide is dissolved in water, it typically forms a basic solution. In this case, blue litmus paper will remain blue, indicating the basic nature of the solution. If the metal oxide were to produce an acidic solution, red litmus paper would turn blue, but this is less common for metal oxides.
The oily layer prevents water and air from reaching the metal's surface and causing the metal to rust.
Water Wood Metal Plastic Paper
Painting a material that rusts, usually an iron rich material like steel, keeps the metal from exposure to the environment such as air and humidity. Rust is actually the oxidation of metal, and protecting metal with paint does not allow this to happen.
Polystyrene (especially the expanded "Styrofoam (R)" type) is a good insulator. Metals are good conductors of heat.The insulating cup will maintain a greater heat differential than the conductor so if there is a liquid in the cup that is at a greater temperature than the surroundings, the metal cup will loose more heat than the polystyrene cup.
Replace rubber washers and possibly metal seats in the faucet