| Term | Definition |
|---|
| matter | Matter is everything in the universe that has mass and takes up space. |
| mass | Mass is the amount of matter something contains. |
| solid | A solid is the state of matter that has a definite shape and takes up a definite amount of space. |
| liquid | A liquid is a state of matter that takes the shape of its container and takes up a definite amount of space. |
| gas | A gas is a state of matter that has no definite shape and takes up no definite amount of space. |
| volume | Volume is the amount of space that matter takes up. |
| density | Density is the property of matter that compares the amount of matter to the space taken up. |
| solution | A solution is a mixture in which the particles of different kinds of matter are mixed evenly with each other. |
| dissolve | When you dissolve something, one material forms a solution with another material. |
| solubility | Solubility is the measure of the amount of material that will dissolve in another material. |
| buoyancy | Buoyancy is the ability of matter to float in a liquid or gas. |
| physical change | Any change in the size, shape, or state of a substance is called physical change. |
| chemical change | A change that produces one or more new substances and may release energy is called a chemical change. |
| chemical reaction | Chemical reaction is another term for chemical change. |
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