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All material contract as they cool down. Water has an exceptional behavior in the range 4 deg C to its freezing point. In this range, water expands as it cools down. That is why ice is lighter than liquid water and can float on top.
Wiki User
∙ 12y ago
Wiki User
∙ 16y agoBecause it expands when it freezes.
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Is it true that a scientific law can have only one known exception?
No. A scientific law has no KNOWN exceptions. If an exception is found, the rule may continue to be used, but only until a better law is found.
What solid is an exception to the rule that solids are more dense than liquids?
The best example is ice, which is the solid form of the liquid we call water. Water's solid form (ice) floats on its liquid form, as we know.
What is the one exception to the rule that waves don't move matter?
Sound waves/vibrations move matter in the form of air particles which is how sound propagates, so that could be an exception to the rule. However, you could say water waves move matter too. They certainly don't go through matter like radio waves. Solar winds may be an exception too. They are a continuous flow of solar plasma/magnetohydrodynamic waves mixed with shock waves Hence, solar sails are possible.. It's getting more probable that matter is made of quantum waves that act like solid particles, but aren't. Mass is energy, not matter. But it creates what we consider matter: an object that takes up space and has mass. Most waves have mass, like water or sound waves or solar wind waves. Each carries and therefor moves matter. But the matter it moves through isn't carried away by most waves.So I don't think it's a valid rule unless it specifies the type of wave or waves we're talking about and the specific context of the rule in relation to those specific waves. If that's done, there is no exception to the rule. Otherwise, if we say there are exceptions, then the rule would be shown to be false stated simply: waves don't move matter. There's so much more to it, including the fact that the word matter is vague at best. A water wave or a shock wave hitting matter certainly can move it even if it doesn't carry it away. So, again, worded as it is, it's not much of a rule.So, is it true that no waves move matter? No. So if it's true, then the rule has to be modified to explain the context/conditions in which it is true. Once context is specified, there are no exceptions.
Do most materials expand or contract when frozen?
Most materials contract when going from a liquid to a solid state. This is because materials have more thermal energy in the liquid state, meaning that the molecules have enough energy to move around freely but still remain loosely bound to each other. When the material freezes, the molecules lose the thermal energy and cannot overcome the intermolecular forces, therefore staying in place and forming a rigid solid. When the molecules in the material become rigid they take up less overall space compared to when the molecules were freely moving around in the liquid state.Water, however, is an important exception to this rule. When water freezes the individual water molecules line up with one another to form a lattice-like crystal structure. When water is in its liquid state the individual molecules were free to move around each other. When water freezes, the rigid ordering of the molecules takes up more space, resulting in greater volume but lower density. This is why ice floats and freezing a can of soda will cause the can to burst.
What scientific rule describes why water squirts from a plastic bottle when its squeezed?
Pascal's
Substance that is the exception to the rule of expansion and contraction?
Water is the substance that is an exception to this rule. Although most other substance follow this rule, the hydrogen bond in water is the characteristic associated with this exception.
What organisms are an exception to the rule that all life energy comes from the sun?
Deep-sea animals that live around thermal vents in the ocean floor.
What is the duration of Exception to the Rule?
The duration of Exception to the Rule is 1.63 hours.
Is water an exception to the octet rule?
It is one of many, many exceptions to the octet rule. Hydrogen does NOT require 8 electrons.
When was Exception to the Rule created?
Exception to the Rule was created on 1997-04-05.
Why you are no exception to the rule?
Rules apply to everyone, so when someone says, "You're no exception" or "You're no exception to the rule", they mean "The rule applies to everyone, even to you."
What does thermal expansion of water mean?
Most substances expand as their temperature increases. Water is actually an exception to this rule, since, below 4oC, water actually contracts as it warms (and expands as it cools). This is why ice floats, because it's less dense than water. This is a very unusual thing in the world of chemistry, and only a very few substances exhibit this property. It has something to do with the rigidity of the bonds between the atoms and molecules. I can't fully explain it, and truth be told, I don't even understand it 100%. Nevertheless, above 4oC, water acts "normally", i.e., it expands as it warms. The warmer it gets, the more volume it takes up. The expansion is not very significant in terms of the total volume of water.
What is the opposite of exception?
The opposite of exception is inclusion.(In categorization or regulation, the exception is the opposite of the rule.)
What is an exception to a rule in English grammar or spelling?
The word "weird" is an exception to the rule "i before e except after c".
What are the release dates for An Exception to the Rule - 1911?
An Exception to the Rule - 1911 was released on: USA: 18 May 1911
What is the exception to the rule that every prime number is odd?
2 is the exception to the rule that every prime number is odd
Does not obey the rule or pattern?
An exception does not obey a rule or pattern. Often, the only way to identify an exception is to know the rule or pattern that should be expected.
