observe是动词,有“观察”的意思,在这里要用动词原形,即observe。所以,全句为: This experiment is designed to observe the temperature when water boils and what happens in water during boiling.(该实验的目的是观察水沸腾时的温度及发生的变化。)故答案为:is designed to observe。
This experiment is designed to observe the temperature when water boils and what happens in water during boiling. 该实验的目的是观察水沸腾时的温度及发生的变化。 2. To carry out the experiment__. I prepared the following equipment: water, a thermometer, a beaker and an alcohol burner.为了做...
When the temperature is increased, the motion of the molecules becomes greater and they can move more freely around each other (e.g. water). When the temperature is increased even more, the molecules become very active, as we can see when water boils. Then the molecules are even less ...
The meaning of TEMPERATURE is degree of hotness or coldness measured on a definite scale. How to use temperature in a sentence.
When water boils at a constant pressure, the temperature does not change. The heat energy being added to the water causes water molecules to change...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
根据“When water freezes, it changes from liquid into ice.”可知,当水结冰时,它从液体变成冰。from liquid into ice“从液体成为冰”,故填liquid into ice。 (5)题详解: 根据“Temperature is an important factor in our daily lives. It affects the weather, our comfort level, our health, and ev...
Water boils at 100℃. When water boils, it changes from liquid into steam.根据短文内容选择最佳答案。( )31. What is the weather like in summer in England? A. Hot. B. Warm. C. Cool. D. Both A and E. ( )32. How high is the temperature when English people think the weather is ...
Density and Water Temperature Water temperature and water density are directly related. As the temperature of water increases or decreases, it will alter the density of water. This is a unique relationship in that unlike most materials, the density of pure water decreases approximately 9% when it...
You're probablyinterested in weatherand temperatures and might track the temperature on apps to figure out when it's best to go outside. This information can also help you plan your activities. Most television thermometers display just one value, but real indoor and outdoor thermometers have mor...
Water boils at lower temperature on high altitude because: 01:02 When a student was given a viscometer, the liquid was sucked with diff... 01:22 Mark the statement which is correct: 02:16 With the increasing molecular mass of a liquid the velocity: 01:12 The viscosity of which of the...