作业帮根据提示写一个关于这个实验的短的段落 提示：1.Add some salt to a glass of water .2.Stir the water .(disappear ,become part of)3.Heat the water .(a white cloud ,be made up of ,small drops of ,continue)4.Finally ,(start to dry up)
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/16 16:17:51
根据提示写一个关于这个实验的短的段落 提示：1.Add some salt to a glass of water .2.Stir the water .(disappear ,become part of)3.Heat the water .(a white cloud ,be made up of ,small drops of ,continue)4.Finally ,(start to dry up)
根据提示写一个关于这个实验的短的段落 提示：1.Add some salt to a glass of water .
2.Stir the water .(disappear ,become part of)
3.Heat the water .(a white cloud ,be made up of ,small drops of ,continue)
4.Finally ,(start to dry up)
段落：
First ,add some salt to a glass of water .______________________________________________________________________________________________________________________________________________________________________________________________________________________________
Finally ,________________________________ .The salt turns into crystals .
根据提示写一个关于这个实验的短的段落 提示：1.Add some salt to a glass of water .2.Stir the water .(disappear ,become part of)3.Heat the water .(a white cloud ,be made up of ,small drops of ,continue)4.Finally ,(start to dry up)
When you stir the water, the salt disappears--it becomes part of the water. When you heat the water, you can see a white cloud which is made up of small drops of water--it is not steam, which is invisible because it is a colorless gas. Finally, when water starts to dry up, the salt turns into crystals.
这里的crystal是晶体的意思,晶体是固态物质的一类,是内部质点在三维空间成周期性重复排列的固体,具有长程有序,并成周期性重复排列,有规则的几何形状,各向异性.salt是盐,是一类金属离子或铵根离子（NH4+）与酸根离子或非金属离子结合的无机或有机化合物.无机盐包括氯化钠,硝酸钙,硫酸亚铁等,有机盐包括苯酚钠、乙酸钠、乙酸铵、盐酸苯胺等,在这里特指食盐（氯化钠）.希望我能帮助你解疑释惑.