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Question
QUESTION: Name of precess which format waterdroplets  by holding acool steel plate over boiling water

ANSWER: This is called condensation Harvinder

---------- FOLLOW-UP ----------

QUESTION: 1. Why lid of thewater filled jar which is not screwed down, raises when kept in the freezer for five to six hours

Answer
It has to do with density Harvinder. Density has to do with how close molecules are to each other. As we lower he temperature of the water the water molecules get closer. Water reaches its maximum density at 4 degrees C. At that point the water turns to ice and expands and ice floats, pushing up the jar lid

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walter hintz

Expertise

I can answer questions from kids in all grades in the areas of general science, biology and nature study

Experience

I have been a teacher for over 55 years and have spent many years doing hands-on science with elementary and middle school students.

Publications
The Ohio Journal of Science
Momentum: The Journal of the Catholic Educational Association

Education/Credentials
B.S Ed Kent State University
M.Sc. The Ohio State University

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