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walter hintz

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

Ralph Salier-Hellendag

Science Fair Judge for many years and experience with robotics, biology, chemistry, industrial processes, metalurgy and metal forming.

Sue Kayton

I can answer almost any student science question! I especially like ones involving silkworms, spacecraft and computers.

Recent Answers

2016-09-28 question about eggs:

Hi Kayla,    I understand your confusion and concern for the baby in the egg.  First of all, the baby duck is not breathing for a long time, in fact it does not need to breath until just before it hatches

2016-09-21 Carbination:

Hi Michelle,    That is a very good question.  In the can, you have the drink and carbon dioxide gas (the bubbles).  When you shake the can, it causes the gas to come out of solution (the gas is dissolved

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