|
 property | a characteristic or trait of an object which can be observed such as size, shape, color or texture |
| mixture | two or more materials stirred together |
| dissolving | the process in which a material spreads out into another material so that the first material seems to disappear |
| solution | a mixture in which one substance dissolves in another |
| solute | the substance that dissolves in the solvent to form a solution |
| solvent | the substance that dissolves the solute to form a solution |
| evaporation | the process that causes water to dry up. The liquid turns to a gas and spreads out into the air |
| crystal | the solid form of a material that can be identified by its properties such as shape, color, and pattern. This may be formed when a liquid evaporates from a solution. |
| atoms | The building blocks of matter. Once a mixture or solution has been separated into its parts, the smaller parts can be broken down to these smaller parts. |
| element | a special type of atom such as hydrogen, oxygen, or gold. |
| 92 | The number of naturally occurring elements |
| compounds | Elements can come togethr in many different ways to form these. |
| salt (NaCl), wather H2O | examples of compounds |
| mass | The amount of matter in an object |
| balance | Used to measure mass |
| gram | The unit used to express mass |
| chemistry | The branch of science that deals with the composition (make up), structure, and properties of matter. |
| lab safety rules | wear safety glasses, wash hands when finished, don't smell or taste anything unless told to do so |
| screens, filters, hand-sorting | Three ways that mixtures that aren't solutions can be separated |
| let the liquid evaporate | Way to separate a solid from a solution |
| saltwater | solid and liquid solution |
| gravel and water | solid and liquid mixture (not a solution) |
| soda | liquid (water) and gas (carbon dioxide) solution |
| corn syrup and water | liquid and liquid solution |
| air | gas and gas solution |
| salt | the solute in salt water |
| water | the solvent in salt water and soda |
| carbon dioxide | the solute in soda |
| weight | the amount of gravitational pull on an object |
| spring scale | used to measure the amount of gravitational pull on an object |
| suspension | a mixture in which one substance is suspended in another and when left to sit the suspended substance will settle to the bottom |
| oxygen, carbon, hydrogen, nitrogen, calcium | the main elements that make up our bodies |
| iron, oxygen, silicon, magnesium, sulfur, nickel | the main elements that make up our earth |
| solid, liquid, gas | the states of matter |
| solid | the state of matter in which the molecules are closest together |
| gas | the state of matter in which the molecules are farthest apart |
| gas, liquid | the states of matter that do not have a definite shape and take the shape of its container |