A. The egg will sink to the bottom immediately B. The egg will float on the salt water C. The egg will dissolve in the salt water D. The E. gg will turn into a hard - boiled egg 相关知识点: 试题来源: 解析 B。解析:盐水的密度比普通水的密度大。当把生鸡蛋放入盐水中时,如果盐水的...
During an experiment on the solubility of salt in water, if we want to make the salt dissolve faster, we should ___. A. stir the water slowly B. stir the water vigorously C. add more salt D. reduce the amount of water 相关知识点: 试题...
根据“because salt water is heavier. The heavier salt water stays at the bottom of the glass and the lighter coloured water at the top.”可知,盐使无色水变得更重。故选C。 (3)题详解: 推理判断题。根据标题“An experiment (实验) you can try at home”并通读全文可知,本文介绍了可以在家做...
We are doing an experiment. We have put some salt into the water and stirred it. Now what will we observe? A. The water will turn red. B. The salt will disappear. C. The water will boil. D. The salt will float on the surface. ...
experiment you can see that the egg floats at the top of the salt water layer and rests at the bottom of the tap water layer. Over time, as the layers mix, the egg should sink. As the layers mix, the solution becomes less dense and less able to resist the weight of the egg. ...
encroachment in the coastal reclamation areas, carry out real-time dynamic monitoring as well as study the law of movement of water and salt in soil by changing different experiment conditions such as different water quality, different water levels and the like in the underground water level ...
The water and salt balances of the permanent North Basin and ephemeral South Basin during the experiment were evaluated using a combination of hydrometric techniques and trends for salinity and the stable isotopes of water. Filling of the basins (with freshwater from the River Murray) decreased ...
I am doing an experiment. I need a glass of water, a spoon and some salt. What should I do first? A. Add salt to the water. B. Put the spoon in the water. C. Pour water into the glass. 相关知识点: 试题来源: 解析 C。首先应该把水倒进杯子里,这是进行实验的第一步。A 选项...
In the science experiment, we put the salt in the water and stir it. What will happen? A. The salt will disappear. B. The water will become black. C. The salt will float on the water. D. The water will boil. 相关知识点: ...
The heavier salt water stays at the bottom of the glass and the lighter coloured water at the top. 26. Which of the following should be put in ▲ ?A. sugar B. ice C. a towel D. food coloring27. Why is salt used in the experiment? E. To add more taste to the coloured water....