Physical properties include the state of matter. We know these states as solid, liquid, or gas. Properties can also include color and odor. For example, oxygen is a gas. It is a major part of the air we breathe. It is colorless and odorless. Chlorine is also a gas. In contrast to oxygen, chlorine is greenish in color. It has a strong, sharp odor. Have you ever smelled cleaning products used around your home? If so, you have probably smelled chlorine. Another place you might smell chlorine is at a public swimming pool. The chlorine is used to kill bacteria that may grow in the water. Other physical properties include hardness, freezing, and boiling points. Some substances have the ability to dissolve in other substances. Some substances cannot be dissolved. For example, salt easily dissolves in water. Oil does not dissolve in water. 

Question: "What do physical properties include?"

Response: "melting temperature"

A: yes


To say her face fell would do a disservice to Tasha and to literature. (Allow me my self-indulgences as you would those of a dying man -- when I convince my mindsmith to permit the wipe, there will be another Bernardo Flynn, one who knows no more of Tasha Cortez or Vega IV than he reads here.) Her brows drew together, creasing the lovely, caramel-colored skin around her eyes and showing the pattern for an old woman's wrinkles on her forehead. Her lower lip (a trifle too narrow for her face, perhaps her only physical flaw) thrust forward slightly as she started to speak. She caught herself, slid her jaw infinitesimally back into place, and said, "You don't like it?" I laughed. What could I do? I clapped her shoulder to show I was not laughing at her. "Like it? I hate it, despise it, abhor it! It's gaudy, graceless, pretentious -- That house is an affront to taste and intelligence. I should buy it to raze it, but I am not so kind-hearted. I might, however, rent it." I think she only heard the last words of my speech. "You will?" "It amuses me. Show me around, and then I shall decide." "Of course, Señor Flynn." "And stop calling me 'señor'. Not even Los Mundos is so polite. Call me Bernardo." 

Question: "Whose lower lip was too narrow for her face?"

Response: "Tasha's"

A: yes


The properties of matter depend on the types of atoms that matter is made of. Matter can exist in two forms. It can be a pure substance. This means it is not mixed with anything. It can also be a combination of different substances. This means it can be a mix of different types of atoms. You may recall that atoms differ based on the numbers of protons they contain. Some atoms contain only one proton such as Hydrogen. Other atoms contain many protons. There are many types of atoms. For example, Helium has two protons. An Oxygen atom has eight. Water is composed of a two types of atoms. Water is made of two Hydrogen atoms and one Oxygen atoms. There are only so many types of atoms. These atoms can be mixed into an almost limitless amount of substances. So what do we call a substance that has only a single type of atom? 

Question: "What two forms of matter are there?"

Response: "It can be a mix of different types of atoms"

A:
no