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 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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  • Does ice weigh more than water?

    Q: Does ice weigh more than water?

    A: In general, if ice and water have the same volume, then the ice weighs less. This is because ice is less dense than water and occupies more space. Therefore, a gallon of ice weighs less than a gallon of water.
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  • What is the melting point of glass?

    Q: What is the melting point of glass?

    A: The melting point of glass varies greatly according to what type of glass is being melted, but typically ranges from 2,597 to 2,912 degrees Fahrenheit. The variance in melting temperatures is caused by the mix of materials used initially to create the glass.
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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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  • 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 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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  • At what temperature does wood catch fire?

    Q: At what temperature does wood catch fire?

    A: Dry wood catches fire between about 300 degrees Fahrenheit and 580 degrees Fahrenheit, depending upon the species of wood and the extent of decay present, with more decayed wood being quicker to ignite. The amount of moisture in the wood is the strongest influence on wood reaching this temperature.
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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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  • What happens in a condensation reaction?

    Q: What happens in a condensation reaction?

    A: In a condensation reaction, two reactants react to form water or ammonia and one other byproduct. As long as either water or ammonia is formed and is the only byproduct, a reaction is considered a condensation reaction. A condensation reaction is not to be confused with the process called condensation, where water vapor turns to liquid after losing heat.
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  • What are the characteristics of matter?

    Q: What are the characteristics of matter?

    A: All physical matter has mass, weight, volume and density. Matter also has certain characteristics restricted only to specific physical states. Physical matter is made up of atoms, minuscule particles that form physical structures via their electrically charged attraction to one another.
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  • At what temperature does wood start to burn?

    Q: At what temperature does wood start to burn?

    A: When wood is completely dry and is not a type of artificial wood, the combustion temperature is generally 451 degrees Fahrenheit, according to the Argonne National Laboratory. However, there are many variables, such as moisture, oxygen ability and wood density, that come into play.
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  • What is the hottest thing in the world?

    Q: What is the hottest thing in the world?

    A: In 2006, scientists at Sandia Labs recorded temperatures of 3.6 billion degrees Fahrenheit, or two billion degrees Kelvin, within a super-heated gas called plasma. The temperatures were reached with the aid of the Z machine, which is an x-ray generator.
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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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  • What are some general properties of matter?

    Q: What are some general properties of matter?

    A: Properties of matter, defined by Education Portal, are divided into two groups: physical properties that include color, density, mass, boiling point, volume, solubility, malleability and temperature; and chemical properties that include reactivity with oxygen, reactivity with water, flammability, pH, toxicity and combustion. Physical properties of matter can be observed or measured without changing the composition, while chemical properties can only be observed after a chemical change has occurred.
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  • What happens when water boils?

    Q: What happens when water boils?

    A: Water boils when the thermal energy in the water, which is a type of kinetic energy which causes the water molecules to move around, exceeds the strength of the hydrogen bonds between the molecules, causing them to separate from the other molecules. This breaking of bonds between water molecules consumes any additional thermal energy added, so that water at boiling temperature does not increase in temperature until the phase change is complete. In normal conditions, much of the water vapor almost immediately turns to steam, which is actually composed of droplets of liquid water because it has left the source of heat.
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  • What is the density of oil?

    Q: What is the density of oil?

    A: The density of oil depends on the type of oil and varies between 0.8 to 0.96 grams per centimeter cubed. Fuel oil is commonly used in engines and industrial furnaces. It is also called heating oil and has a density of 0.81 grams per centimeter cubed.
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  • Why do solids have definite shapes and volumes?

    Q: Why do solids have definite shapes and volumes?

    A: Solids have definite shapes and volumes because their atoms and molecules are held together firmly by the strong inter-molecular forces. At low temperatures, the kinetic energy in the solid is usually not enough to overcome these intermolecular forces, so the solid remains in the same state.
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  • What is it called when a gas turns into a liquid?

    Q: What is it called when a gas turns into a liquid?

    A: Condensation is the name of the process through which gas turns into a liquid. Three common states of matter exist: solids, liquids and gases. Matter, however, can change its state with the addition or subtraction of energy. The energy is usually in the form of heat.
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  • Where does chalk come from?

    Q: Where does chalk come from?

    A: According to Discovering Fossils, chalk occurs naturally in nature as calcium carbonate, a form of limestone. Limestone is formed from the decomposition and sedimentation of Coccolithophores skeletons, a type of plankton.
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  • In what two ways is heat involved in chemical change?

    Q: In what two ways is heat involved in chemical change?

    A: Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place. Both of these two mechanisms of chemical change involve the heat characteristics of the involved substance or substances and the environment in which the chemical change is taking place.
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  • What is the melting point of rubber?

    Q: What is the melting point of rubber?

    A: Rubber begins to melt at approximately 180 degrees Celsius. At low temperatures, around 5 C to 6 C, there is a risk that rubber hardens because of crystallization. The optimum temperature for rubber is 20 C.
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