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There are four states of matter. They are solid, liquid, gas, and plasma.

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They are features that can be observed with the senses or measured with a tool. For example, color of a substance is a physical property and so is texture.

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Anything that has mass and occupies space. For example, a pen is matter and so is water.

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The principle that the total amount of matter is neither created nor destroyed during any chemical or physical change. An example is that chemically, when you have a chemical reaction, in theory no mass is lost. Again, with objects, you can weigh them separately on a scale like a pencil and then a beaker, and it will be the same thing as the pencil and the beaker weighed at the same time.

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A substance that is homogeneous to the naked eye, but made of super small particles. With a microscope, it would look heterogeneous. It contains properties from a liquid and a solid. some examples are toothpaste and ooblick and silly putty as shown in the picture.

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The sticking together of particles of the same substance. For example when you drink out of a straw, a force pulls water molecules that are sticking together up the straw, and on a penny, water sticks to itself because of hydrogen bond as shown in the picture.

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It is the measure of a liquid's resistance to flowing. For example, water has a low viscosity, because it flows easily, but oil might have a higher viscosity because it flows slower.

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The change of state from a gas to a solid. Some examples are when water vapor turns to snowflakes in the air, and when water vapor turns to frost on grass.

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The change of state from a solid directly to a gas without passing through the liquid state. An example is dry ice because it is so cold that it evaporates without turning into a liquid.

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The change of state for liquid to gas. One example is how water can evaporate out of an ocean to eventually for a cloud follow the water cycle. In the picture, tea is shown and the tea that is a liquid is evaporating into a gas.

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The change of state from gas to liquid. This can happen when gas molecules condensate to form a cloud in the sky. The picture shows how the vapor molecules can form tiny ice crystals or water droplets in the sky.

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When liquid changes state to a gas because it has been heated to its boiling point and vaporization occurred. An example is how water and chemicals can boil to make them hotter.

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The change from the liquid state to the solid state. Some examples are when water turns to ice or when frozen juice can turn into a popsicle as shown in the image below.

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The change from the solid state to the liquid state. Some examples are when ice cream melts to form a liquid cream, or when ice melts to for water as shown in the image below.

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The components are randomly arranged. This is shown in cotton candy, glass and rubber

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Components are uniformly arranged (Arranged in an order). Some examples are salt, sugar, and diamonds because the atomic structures of these are organized.

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A single kind of matter that is pure and has uniform properties. Some examples of pure substances are carbon, iron, water, sugar, and salt.

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A composition of two or more substances that are not chemically combined. For example, lemonade is a mixture, and so is a salad.

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A change in a substance that does not change its identity. For example, ripping a notecard or coloring on paper, it doesn't actually change its identity, just how it looks.

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A change in which one or more substances combine or break apart to form a new substance. An example is burning paper because it creates a new substance.

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A substance that is not mixed well; a heterogeneous mixture with one substance layered on top of another. An example is how oil and alcohol can be suspended above water because they tend to have be less dense than the water. Oil suspended in water is shown in the picture.

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The strength of solution. For example, if something is a concentrated solution, it is a strong solution like iced tea with too much of the powder put in it.

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To make a liquid thinner or weaker by adding water or another solvent to it. For example, if there is a strong iced tea drink, you can add water to dilute it to make it taste better and less strong.

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The maximum quantity of a particular substance that can dissolve in a particular solvent. An example is the fact that sugar is very soluble in water. However, in another liquid, such as methyl alcohol, it is only somewhat soluble.

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A homogeneous mixture of two or more substances. It is the result of the solute dissolved in the solvent. a solvent dissolving a solute to make the solution is shown in the picture.

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The substance that does the dissolving. Water is considered the universal solvent.

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The substance that gets dissolved in the solvent. For example, the lemonade powder in the lemonade mix.

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A mixture that has the same uniform appearance and composition throughout, where substances are evenly distributed throughout. A solution like kool-aid is a homogeneous mixture and so is lemonade.

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A mixture that does not have the same composition and properties throughout. The mixture can be easily separated. An example is a bowl of many objects like pencils, erasers, and pins, or the image to the right.

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A gentle sheen or soft glow, on or reflecting off a substance. For example, metal is shiny and reflective, so it has luster.