Record of water freezing experiment at what temperature

Zero degrees

RELATED INFORMATIONS

1. And those words mean water Is there anything else besides rivers, lakes and oceans that we all know?
2. The density of water is 1.0 * 10 ^ 3kg / m ^ 3. What is its scientific significance?
3. Experiment: is there water or steam in the air? To study this problem, let's do a small experiment first Take a big bottle with a cap (or wide mouth bottle), add some ice in it, and cover the bottle in time. Carefully observe what changes will happen inside and outside the bottle? __________________________________________________________________ __________________________________________________________________ Conclusion: after observation and thinking, I think the water on the inner wall of the bottle is made of water_______________ The water on the outer wall of the bottle is made of water_________________ It's not the same This shows that there are many problems in the air__________________ . Dear brothers and sisters, I don't understand the above scientific questions. I hope you can answer them for me,
4. 1: Fill in the name of the country When () is day, () is night, () is morning, () is dusk 2： If the opening ceremony of the 2008 Beijing Olympic Games is set at 20 p.m., when should viewers from the United States, Germany, Australia and other countries watch the live broadcast?
5. Primary school fifth grade science topic, urgent What idioms do you associate with the following words? Write them in brackets Example: Chimonanthus praecox -- (icy) summer -- (scorching sun) Fable -- () desert -- () space -- () I'm sorry. I'm sorry. It's a Chinese topic.
6. 1. Cactus can also become thorns and thick stems, which is related to the environment 2. How does the shadow under the sun change in a day? It is longer in the morning, then shorter, shortest at noon, and then longer. It is longest when the sun is about to set in the West. The direction is () 3. Soil is a mixture of sand, pebbles, clay, humus, water, air, () 4. Bicycle chain and gear are used () method to reduce friction
7. Grade five science topic! High score! All clocks use () to control the rotation of the pointer connected with () The ancient Egyptians defined the night as () hours. With the change of time, the () and () of the shadow of an object in the sun will also change. Through the experiment, it is found that the number of times the pendulum swings back and forth per minute is related to (), has nothing to do with (), and has nothing to do with ().
8. What should children learn English first in the third grade
9. How to teach English to the third grade children Children who have just started do not know how to teach to improve their interest, and what should be taught in the third grade
10. Some English songs suitable for the third grade of primary school
11. What is 5 out of 18 - (5 out of 18-7 out of 25)?
12. 11.. 1 (2000 1) 55.. 5 (2000 5) divided by 333.. 3 (1999 3) 5 What is the value of?
13. 1+2-3-4+5+6.-1983-1984+1985+1986=? Simple algorithm to solve, time is very tight!
14. A simple algorithm for dividing 6237 by 63 You have to say why,
15. 3.76°=______ Degree______ Points______ Seconds
16. Mathematics 2 / 7 times (- 5 / 12) - 3 / 7 times 5 / 12 + 5 / 7 times 17 / 12
17. (): () = 0.375 = 9 of 40 = () / 16 = ()% Those who are in a hurry are rewarded
18. Simple calculation of 28 * 46 + 72 * 51
19. How many decimeters is three fifths of a meter
20. 3 and 3 / 4 * (3 / 5 and 8-1.375)