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matter
Vocabulary
Term | Definition |
---|---|
Matter | is anything that has mass and takes up space. |
Mass | describes the amount of matter in an object. |
Wieght | is a measure of the gravitational force on an object. |
Volume | the amount of space that an object takes up, or occupies. |
Density | is a measure of the amount of mass given volume. |
physical property | a characteristic of a substance that can be observed and measured without changing the identity of the substance. |
chemical property | describes a substances ability to change into a new substance with different properties. |
physical change | is a change that affects one or more physical properties of a substance. |
chemical change | occurs when one or more substances change into entirely new substances with different properties. |
law of conservation of mass | states that in ordinary chemical and physical changes, mass is not created or destroyed but is only transformed into different substances. |
atom | are the smallest unit of an element that maintains the properties of that element. |
element | is made up of one or more of the same kind of atom chemically combined. |
compound | is made up of different kinds of atoms chemically combined. |
mixture | contains a variety of elements and compounds that are not chemically combined with each other. |
pure substances | elements and compounds. |
heterogeneous | mixture is one that does not have a uniform composition. |
homogenous | mixture. |
solid | substance has a definite volume and shape. |
liquid | substance has a definite volume but not shape. |
gas | does not have a definite volume or shape. |