| A | B |
|---|
| grams, g | 质量的单位 We use it to measure mass. |
| density | 用来识别物质的特点 characteristic property |
| condensation | 冷凝，气变水 Gas turns into a liquid. |
| melting point | 熔点，固体融化 Solid changes to liquid at this temperature. |
| cm3; ml | 体积的单位 We use them to measure volume. |
| evaporation | 蒸发 The process where a liquid turns into a gas. |
| balance | 天平 We use it to find the mass of an object. |
| boiling point | 沸点 At this temperature, a liquid changes to a gas |
| contraction | get smaller |
| expansion | get bigger |
| shrink | get smaller |
| freezing point | 冰点 At this temperature, water changes to ice. |
| mass | 质量 a measure of the amount of matter in an object |
| a phase change | 三态变化 Ice changes to water or water changes to gas. |
