Water has its maximum density at?

🔑Key Points:
Water density
​The density of water can be defined as the mass per unit volume of water, which depends on the temperature of the water.
The maximum density of water is at 4°C, because at this temperature the two opposite effects are in equilibrium.
The density of ice is less than that of water, so it floats.
As the temperature of the water decreases, the molecules move closer to each other.
The density of water increases until the temperature drops to 4°.
At 4°, clusters of water molecules begin to form and the density begins to decrease.