This lesson focuses on the physical properties of halogens, Group 7 elements on the Periodic Table. It includes the physical properties of the elements, provides a graph showing the melting and boiling points of the halogens, and links...

[Free Registration/Login may be required to access all resource tools.] What happens to matter when it melts and the definition of melting point.

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 2 of 4 in the series titled "Boiling, Freezing, Melting Point."

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 4 of 4 in the series titled "Boiling, Freezing, Melting Point."

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 1 of 4 in the series titled "Boiling, Freezing, Melting Point."

Brief descriptions of physical properties, physical changes, and the process of sublimation. The three states of matter, melting point, and boiling point are described. There is one link on the page, which leads to an explanation of...

Percy Julian and Josef Pikl used the fact that melting point-the temperature at which a substance changes from a solid to a liquid-is a characteristic property of a substance to prove that the British chemist Robert Robinson could not...

Freezing temperature, the temperature at which a substance turns from liquid to solid, and melting temperature, the temperature at which a substance turns from a solid to a liquid, are characteristic physical properties. In this...

[Free Registration/Login Required] Explore how solutes can keep roads clear of ice in the winter by learning how different types and concentrations of a solute affect the freezing point of a solution.

In this lesson students will understand the difference between chemical and physical properties by studying the properties of water. Students will also understand how to perform the different laboratory techniques that go along with the...

A page describing (in part) the distinction between energy, temperature and heat. Includes a graphic illustrating the quantity of energy needed to transform water between various states. Methods of thermal energy transfer (convection,...

This lesson will introduce a phase change diagram for water, relating energy to progress of a phase change, with labeling including specific heat values, heat of fusion value and heat of vaporization value.

Answer the thermal energy transfer questions correctly, and advance around the baseball diamond.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.

Observe the melting points and boiling points of the first 10 linear alkanes.

A look at the transition metal unununium, which was renamed roentgenium in 2004. Includes basic information, including symbol, number, mass, melting and boiling points, and numbers of protons, electron, and neutrons.

Do you need to know a specific value of a specific quantity for any given substance? If so, this is the place. Find the heat capacity, heats of vaporization and fusion, and much more from this page.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.

A site containing a good deal of elemental information. Information on each element includes atomic number, atomic mass, melting point, boiling point, density, isotopes and more.