Lakes freeze from the top down. Some lakes do freeze all the way to the bottom. The layer of ice and the less dense water below 4oC on the top provides an insulation to prevent the heat in the lower levels from escaping and the lower water does not freeze unless it looses this heat. A long enough, cold enough winter will remove the heat (this is simple thermodynamics) and the entire lake will freeze. Small lakes freeze faster - big lakes slower.
Liquid water
has a density maximum at about 4 degrees C. Therefore, as water cools at the top of the lake, the 4-degree water falls to the bottom, displacing slightly colder but less dense water. Therefore the lowest levels of water in a large lake (or ocean, or whatever) never reach freezing and such bodies of water freeze from the top down, not the bottom up.
Ionic bonds in water, formed when the molecule gains another electron with the presence of a second Hydrogen atom, releases exothermic heat. This stops the lake from freezing completely solid, as water molecules tend to compact as you go deeper into a body of water.
The entire surface of a lake may certainly become frozen during the wintertime in some areas, but unless the lake in question is fairly small, it is unlikely for a lake to freeze completely beneath the surface. The sheer volume of water in a larger, deeper lake would make it very difficult, if not impossible.
The salinity is so high that the lake never freezes
Though some rivers can freeze over, some do not. One of the reasons that a river does not freeze over is that the kinetic energy of the moving water prevents it from freezing.
because its impossible to freeze a whole lake?
oceans and lakes would freeze solid and all life inthe water would die.
the reason rivers don't freeze is because rivers are always moving where as there alot less movement in lakes
cold air
ice floats.
well when you freeze a solid it will blow up and kill your whole family so i wouldent freeze a solid unless you live on your own or you hate everyone around you!!
It can freeze and be solid.
Can you freeze arsenic with water
While water is moving, its temperatue can drop below zero and it doesn't freeze. Obviously, faster moving rivers are less likely to freeze. For lakes, water's unique density behaviour protects them from freezing. Unlike almost all substances, the solid form of water (ice) is less dense than the liquid form. Ice cubes float. (For almost all other substances, the "cubes" would sink.) So when lakes freeze, the ice stays at the top. This insulates the remaining water from the colder air above. If ice cubes sank, then lakes could freeze all the way to the bottom: the ice that formed would fall to the bottom, continually exposing the top water to the cold air.
Water is most dense at +4 Celsius. This is why lakes do not freeze to the bottom at winter. Solid ice is less dense than water.
If you freeze it, it is.
freeze it
To turn a liquid into a solid you have to freeze it. To turn a gas into a solid you must first turn it into a liquid, then freeze it.