GEOLOGY

Detailed explanation-1: -The warmer the water, the more space it takes up, and the lower its density. When comparing two samples of water with the same salinity, or mass, the water sample with the higher temperature will have a greater volume, and it will therefore be less dense.

Detailed explanation-2: -A decrease in temperature caused the water molecules to lose energy and slow down, which results in water molecules that are closer together and a decrease in water volume. When water is heated, it expands, or increases in volume. When water increases in volume, it becomes less dense.

Detailed explanation-3: -Above 4 ∘C, with increase in temperature, the volume of water increases. Hence the density of water decreases.

Detailed explanation-4: -Density and Temperature Relationship When the temperature decrease, density increases.

Detailed explanation-5: -The density decreases from 0.9970 g/mL to 0.9718 as it is heated. This makes sense because, as heat is added to the liquid water, there is greater kinetic energy of the molecules and there are also more vibrations of the water molecules.