Question

how does the density of water change at temperatures above 4°c? increases decreases

Explanation:

Water has a unique property. Its density is maximum at 4°C. Above 4°C, as the temperature increases, the water molecules gain more kinetic energy and move further apart, causing the volume to increase while the mass remains constant. According to the density formula $
ho=\frac{m}{V}$ (where $
ho$ is density, $m$ is mass and $V$ is volume), an increase in volume with constant mass leads to a decrease in density.

Answer:

Decreases