| what are the three states of matter? | solid, liquid and gas |
| what can we use to identify an object as a solid? | a solid can't be compressed, has a fixed volume, has a fixed shape and can't flow |
| what can we use to identify an object as a liquid? | a liquid can't be compressed, has a fixed volume, doesn't have a fixed shape and can flow |
| what can we use to identify a gas? | a gas can easily be compressed, doesn't have a fixed volume, doesn't have a fixed shape and can flow |
| why can't a solid be compressed? | particles don't move around, they only vibrate on the spot |
| why can't a liquid be compressed? | particles are close together and most are touching |
| why can a gas be compressed?` | particles are very far a[art with lots of space between them |
| why does a solid have a fixed volume? | the forces of attraction (bonds) between the particles are very strongly holding the particles together |
| why does a liquid have a fixed volume? | the forces of attraction (bonds) between the particles are strongly holding the particles together |
| why doesn't a gas have a fixed volume? | the forces of attraction (bonds) between the particles are very weakly holding the particles together |
| why does a solid have a fixed shape? | particles are arranged in a regular pattern and are fixed to their neighbours |
| why doesn't a liquid have a fixed shape? | particles are not arranged in a regular pattern and always change neighbours, the particles are free to move |
| why doesn't a gas have a fixed shape? | particles are spread out in a very irregular pattern and are free to move |
| what is diffusion? | diffusion is the movement of an area of high concentration to a low area of concentration |
| what states of matter can diffusion occur in? | liquid and gas |
| what is the process of a solid becoming a liquid called? | melting |
| what is the process of a liquid becoming a gas called? | boiling |
| what is the process of a solid becoming a gas called? | sublimation |
| what is the process of a liquid becoming a solid called? | freezing |
| what is the process of a gas becoming a liquid called? | condensing |
| what is the process of a gas becoming a solid called? | deposition / desublimation |
| what is gas pressure? | gas pressure is the preessure is the pressure of gas on the outside or the inside of a container |
| what is a substance? | a substance is made up of only one type of particle and can be any state of matter |
| what do you call something that can be dissolved? | soluble |
| what do you call how much of something that can be dissolved? | solubility |
| what do you call something that can't be dissolved? | insoluble |
| what do you call something that can't be dissolved anymore? | saturated |
| what is the solid that'll be dissolved called? | solute |
| what is the liquid that will be dissolved into called? | solution |
| what is the mixture of the solute and the solution called? | solvent |
| what is chromotography used for? | chromotography is used to seperaate coloured from non-coloured substances that are soluble in the same solvent |
| why don't you write the labels in ink in chromotography? | the ink would also run up the page |
