States of Matter

A:

All physical objects, such as stars, books, people, animals, plants and the sea, are examples of matter. Matter is any physical object that occupies space and has mass.

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  • How does matter change from one state to another?

    Q: How does matter change from one state to another?

    A: An element's state changes depending on its temperature and the pressure exerted on it. Heating or cooling an element can cause it to change states. Adding or removing pressure can do so as well.
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  • Is silver magnetic?

    Q: Is silver magnetic?

    A: In its natural state, silver is not magnetic; its atoms have paired electrons that spin in opposite directions, thus causing their magnetic fields to be canceled out, making silver a diamagnetic material.
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  • At what temperature does glass melt?

    Q: At what temperature does glass melt?

    A: Most glass takes on a more fluid consistency at temperatures of around 1350 degrees Fahrenheit. At this temperature, glass has the consistency of honey or syrup.
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  • What is the fifth state of matter?

    Q: What is the fifth state of matter?

    A: The fifth state of matter is Bose-Einstein condensation, which is a gaseous superfluid formed by atoms that have been cooled to almost absolute zero. The theory was proposed by Satyndra Bose and Albert Einstein in the 1920s.
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  • How long does it take to freeze a gallon of water?

    Q: How long does it take to freeze a gallon of water?

    A: The time it takes to freeze a gallon of water varies from minutes to several hours. The time it takes is based on several factors including temperature and the pureness of the water.
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  • How hot is fire?

    Q: How hot is fire?

    A: Wood fires usually burn at a temperature of around 1,950 degrees Celsius. The exact temperature of the flame is dependent on external conditions such as the type of fuel being burned, available ventilation and the form of oxygen available for combustion.
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  • How much does water expand when it freezes?

    Q: How much does water expand when it freezes?

    A: Water expands by a factor of 112, or roughly 9 percent, when it freezes. Water, unlike most other liquids, forms stronger hydrogen bonds as temperatures drop. This leads to a crystal lattice structure with voids left between molecules. As the molecules arrange themselves in this manner, the substance expands and becomes less dense.
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  • At what Celsius temperature does water freeze?

    Q: At what Celsius temperature does water freeze?

    A: Water freezes at zero degrees Celsius under normal conditions. The freezing point is the temperature at which a liquid becomes a solid, according to About.com. The Celsius scale is the official temperature scale for most of the world, although the United States still uses the Fahrenheit scale.
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  • Why can gases be compressed?

    Q: Why can gases be compressed?

    A: Gases can be compressed because each gas particle has relatively vast amounts of room between it and all other gas particles the majority of the time. Thus, compression, which is essentially forcing the gas particles closer together, has a great deal of space to reduce. This contrasts with liquids and solids, which have particles in constant contact with one another, and thus little room to compress.
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  • At what temperature does ice melt?

    Q: At what temperature does ice melt?

    A: Ice begins to melt when its surroundings rise above its freezing point, that being 32 degrees Fahrenheit (0 degrees Celsius). Depending on the salt content and the presence of other substances, that freezing point may be an even lower temperature.
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  • What are some examples of matter?

    Q: What are some examples of matter?

    A: All physical objects, such as stars, books, people, animals, plants and the sea, are examples of matter. Matter is any physical object that occupies space and has mass.
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  • How does gas become a liquid?

    Q: How does gas become a liquid?

    A: The process of a gas changing to a liquid is called condensation, and for condensation to take place, the environment has to reach maximum vapor pressure, generally through a lowering of temperature in the case of the water cycle. Because pressure varies inversely with temperature, as temperature decreases, pressure goes up, causing the gas molecules to move with progressively less kinetic energy. Eventually, liquid vapor and droplets form, and the gas begins to condense.
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  • What is the melting point of mild steel?

    Q: What is the melting point of mild steel?

    A: The melting point of mild steel, or low carbon steel, is usually 2,600 degrees Fahrenheit, or 1,427 degrees Celsius. Mild steel is one of the most commonly used types of industrial steel, and it consists of an alloy of steel and carbon.
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  • Can a solid turn into a gas?

    Q: Can a solid turn into a gas?

    A: A solid can turn directly into a gas through a process called sublimation. In this instance, the solid vaporizes without going through the intermediary liquid stage. For example, in the water cycle, this would involve snow or ice turning directly into water vapor without going through the melting process. The opposite process, in which vapor changes into ice, is known as deposition.
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  • Is aluminum a solid, liquid or gas?

    Q: Is aluminum a solid, liquid or gas?

    A: The physical state of aluminum is dependant on the temperature. This metal exists as a solid at temperatures below its melting point of 1220.58 degrees Fahrenheit, at which it becomes a liquid. At temperatures above 4566 Degrees Fahrenheit, aluminum becomes a gas.
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  • Which gas is used in light bulbs?

    Q: Which gas is used in light bulbs?

    A: Argon is a commonly used gas used to fill incandescent light bulbs. It increases bulb life by preventing the tungsten filaments from deteriorating too quickly. Other gases such as helium, neon, nitrogen and krypton are also used in lighting.
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  • What is the boiling point of milk?

    Q: What is the boiling point of milk?

    A: The additional molecules in milk keep its boiling point slightly higher than water, which boils at 100 degrees Celsius or 212 degrees Fahrenheit. The chemical composition of milk dictates the boiling point and so there is no standard boiling point.
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  • How long does water take to freeze in a freezer?

    Q: How long does water take to freeze in a freezer?

    A: The time it takes for water to freeze in a typical freezer varies depending on a number of factors. The first factor to consider is the amount of water being frozen.
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  • Can you put glass in the freezer?

    Q: Can you put glass in the freezer?

    A: Glass can be used to store things in the freezer. Glass containers can also be put in the freezer temporarily, to make a drink extra cold.
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  • Does vinegar freeze?

    Q: Does vinegar freeze?

    A: Vinegar does freeze. The temperature at which vinegar freezes depends on the amount of acetic acid present. Common commercially-produced vinegar has a 5 percent acetic acid content and freezes at approximately 28 degrees Fahrenheit.
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  • How does temperature affect the rate of evaporation?

    Q: How does temperature affect the rate of evaporation?

    A: Increased temperatures accelerate the rate of evaporation, while decreased temperatures slow down the process. First of all, heating of the liquid energizes the molecules, allowing them to escape and move into the air. Second, heat in the nearby atmosphere increases evaporation because warmer air is able to hold more water vapor.
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