Mom and Toshi are both in very excited state.
Water in the tube has become completely frozen within a second.
The water was in the 'supercooling state'.
Tae: "I was not watching. I missed the experiment."
Dad: "I wish you could have noticed us before you started."
Mom: "I didn't expect this experiment would succeed."
Toshi: "That was very exciting!"
Mom: "Yes, it was really exciting."
Toshi: "I put a piece of ice particle, and then suddenly, the water has started frozen near the ice particle. The freezing process spreads into the entire water, just like domino effects.
Mom: "It was quite pretty to see the freezing process spreading."
Tae: "I want to see it."
Toshi: "Shall we try again?"
Responding to the request, Toshi has decided to try the supercooling experiment again. The preparation takes a little bit time.
Toshi: "It perhaps ready.
I am going to throw an ice particle into the water, OK?"
Dad: "I'm ready!"
Mom: "Go ahead!"
An ice particle was thrown in, and suddenly the water became frozen instantaneously.
Tae: "It's amazing! It's absolutely beautiful!"
Mom: "We did it again!"
Tae: "Show me! This is really frozen. It doesn't fall even I put upside down."
Toshi: "I'll try one more time."
Supercooling: When you cool down water, the water becomes from liquid state (water) to solid state ( ice) at 0 Centigrade. However, if you cool pure water, it may not become frozen and remain as liquid even below 0 Centigrade. This state of the water is called supercooling.
|Purified Water||(Obtained in a drug store. We have succeeded with tap water too.)|
|A Glass Cup||(If available, choose a tall but slim container such as a nursing bottle.)|
|A Thermometer||(You need to be able to measure down to -10 Centigrade.)|
|Ice||approximately 500 grams|
This supercooling experiment was very exciting! Water turned into ice in front of our eyes. I wanted my children to experience this excitement. I wanted them to watch real experiments, not on the television. I am hoping, if any children find excitement in this experiment, he or she will like science. You can say the same thing for literature or music. I believe it is important that children become excited about something. When that happens, they should succeed in school.
|Author||Yumiko Mori (Zushi, Kanagawa, Japan)|
|HTML format||Muneo Kume|