题目内容
Ben's father warned him not __________ too far.
A.to go B.going C.went D.go
天天向上一本好卷系列答案
小学生10分钟应用题系列答案The way to see water's temperature Here's how to tell whether a glass contains（容纳）hot water or cold water-without ever touching it！ | ||
You'll need •2 drinking glasses that are exactly alike
•Ice cubes（块）
•Adult helper •Bathtub（浴缸）or shower •Pencil and paper
| 1.Fill one glass with cold tap water and cool it with ice cubes. Don't use a lot of ice; just cool it a little.
2.Fill the other glass with very hot water.
3.Pour both glasses out into the tub at the same tirme and speed. Repeat this process（过程）a fewtimes，and watch closely each time.
4.Ask your helper to fill the glasses again and not tell you which is which. When you see the water splash in the tub.guess which one is the hot water. 5. Repeat several times. Keep score on your paper. You should be able to guess correctly more than half the time. | |
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Cold water is more dense（稠密的）than hot water.so a cup of cold water is just a little bit heavier than a cup of hot water. |
When you pour hot water onto a hard surface，it splashes（溅起）around more than the cold water because it's less dense. SOURCE:TNS | |
1.Where can you find such a picture？ ______
A.A news report B.A story book
C.A comic D.A science poster
2.What can we learn from the picture？ ______
A.You can do it without others' help．
B.At least two different drinking glasses are needed．
C.Cold water seems much heavier than hot water．
D.You don't have to touch the water to find it's cold or hot．
3.What is the way to see temperature according to the picture？ ______
A.By watching． B.By weighing． C.By feeling． D.By guessing．