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science
| Question | Answer |
|---|---|
| liquid | particles move a little faster and slide past each other |
| gas | particles move so fast that they spread out to fill there container |
| solid | partials vibrate,but dont move there posison |
| boiling point | when a liquid turns into a gas |
| melting point | when a solid turns into a liquid |
| freezing point | when a liquid turns into a solid |
| mixture | two or more pieces of matter mixed together that can be separated |
| compound | made up of two or more kinds of atoms |
| Solution | two or more substance's that can mixed together,but not easly separated |
| Element | pure substance where all atoms are the same |
| Proton | a subatomic partical that has a positive charge |
| Electron | the subatomic partical that fills the shells around the atom |
| Subatomic Particle | a proton,neutron,electron |
| Neutron | a subatomic partical that has a newtaral charge |
| Matter | anything that has mass and takes up space |
| Atomic Number | how many protons are in the atom |
| Atom | the smallest unit of matter |
| Atomic Mass | how much mass is in the atom |
| Physical Change | when an objects physical fetus change |
| Mass | the amount of matter in an object |
| Density | how much matter an object contains in a given amount of space |
| Chemical Change | when a new substance is formed |
| Volume | the amount of space an object takes up |
| Metric System | scientist use the METRIC SYSTEM for measerment |
| Water Displacement Method | to find the volume of a oddly shaped object |
| Qualitative | 5 sences |
| Quantitative | numbers |
| Homogeneous | same |
| Heterogeneous | diffrernce |