Water is at a minimum temperature when it is frozen, which is 0 degrees Celsius or 32 degrees Fahrenheit
From my high school memory, I recalled that water has minimum volume when at 4 degrees Celcius. This is why it is able to penetrate rocks as it is cooling and then crack them apart once it freezes again.
Then I found this site http://www.simetric.co.uk/si_water.htm
which states
At 4°C pure water has a density (weight or mass) of about 1 g/cu.cm, 1 g/ml,
1 kg/litre, 1000 kg/cu.m, 1 tonne/cu.m or 62.4 lb/cu.ft
and
When water freezes it expands rapidly adding about 9 % by volume. Fresh water has a maximum density at around 4° Celsius. Water is the only substance where the maximum density does not occur when solidified. As ice is lighter than water, it floats.
expands in volume and decreases in density. At the point of maximum density, water molecules are arranged in a hexagonal structure, causing the water to be most compact. Beyond this point, as water continues to warm, it expands and becomes less dense.
Temperature, salinity, and pressure have significant effects on water density. As temperature increases, water density decreases because warmer water molecules are more spread out. Higher salinity increases water density since dissolved ions make the water heavier. Pressure also impacts density, with deeper water being denser due to the weight of the overlying water column.
When water in liquid form is cooled, the molecules come closer and closer together, increasing its density to a maximum at 4 degrees Celsius. (Further cooling slightly decreases the density until Zero dgrees Celsius. At that temperature, water molecules start sticking together in rings of six molecules. These take up more room than molecules simply bunched together, so ice is less dense than liquid water.)
To find the density of water at a specific temperature, you can use a reference table or formula that provides the density of water at different temperatures. Alternatively, you can measure the mass and volume of a sample of water at that temperature and use the formula density mass/volume to calculate the density.
The formula to calculate the density of water for a change in temperature is: Density = Density at reference temperature / [1 - β (T - T_ref)], where β is the volumetric thermal expansion coefficient of water, T is the temperature, and T_ref is the reference temperature.
Pure water reaches its maximum density at a temperature of approximately 4 degrees Celsius. This is why water typically contracts as it cools below this temperature, but expands as it freezes into ice.
Water reaches maximum density at 4 degrees Celsius
The temperature at which water possesses maximum density is 4 degrees Celsius. At this temperature, water molecules are packed closely together, decreasing the volume per molecule and increasing the density.
The maximum density of water occurs at a temperature of 4°C
The maximum temperature that boiling water can reach is 212 degrees Fahrenheit (100 degrees Celsius) at standard atmospheric pressure.
The temperature of maximum density for seawater is approximately 3.98 degrees Celsius. This means that at this temperature, seawater has its highest density, which is important for ocean circulation and thermohaline processes.
At 23 degrees Celsius, water reaches its maximum density. As the temperature of water increases beyond this point, its density begins to decrease, causing colder water to rise to the surface. This phenomenon is known as the temperature of maximum density.
Liquid water has its maximum density at 4 degrees Celsius. At this temperature, water molecules are densely packed, causing the water to be the most compact, which is why ice forms on the surface of bodies of water at this temperature.
The maximum density of water occurs at 4 degrees Celsius (39.2 degrees Fahrenheit). At this temperature, water molecules are arranged in a way that allows for the highest density before expanding and becoming less dense as it freezes into ice.
Its temperature rises. As 40C is the temperature where water has its maximum density, then the density will drop as well
The maximum density of ultrapure water (0,9999720 g/cm3) is at 3,98 0C.
expands in volume and decreases in density. At the point of maximum density, water molecules are arranged in a hexagonal structure, causing the water to be most compact. Beyond this point, as water continues to warm, it expands and becomes less dense.