hardness, a description of how firm an object is, texture, how an objects feels to the touch, property, something about matter that you can observe with one or more of your senses, matter, Anything that takes up space and has mass, states of matter, forms that matter can take (water, liquid, or gas), evaporation, the change from liquid water to water vapor, condensation, the change from a gas into a liquid

Matter

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?