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Science Test Nov. 13
| Term | Definition |
|---|---|
| Element | a substance made up of one type of atom |
| Matter | something that takes up space |
| Mass | a measure of the amount of matter in an object |
| Density | the relationship between mass and volume |
| Volume | the amount of space something takes up or occupies |
| Atomic Mass | the total number of protons and neutrons in a balanced atom |
| Atomic Number | the number of protons in the nucleus |
| Atom | the basic building blocks of matter |
| Element | an element is a substance made up of one type of atom |
| Compound | a combination of two or more elements bonded with the same ratio of elements in each part |
| Physical property and examples | color, shape, taste, texture(feel), sound |
| Solid | definite volume and shape |
| Liquid | definite volume no definite shape |
| Gas | no definite volume or shape |
| Electrons | in a balanced atom, the number of protons are the same as the number of electrons |
| Neutrons | found by subtracting the atomic number by the atomic mass, no charge |
| Subscript | H20: two hydrogen one oxygen |
| Indicators of Chemical change | production of a gas, production of an odor, formation of a precipitate, change in color,change of energy/tempurature |
| Protons | make up the identity of an element, they are the atomic number |
| Mixture | a combination with at least two different types of compounds or elements |