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walter hintzU.S.
Available

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

Science Fair Judge for many years and experience with robotics, biology, chemistry, industrial processes, metalurgy and metal forming.  
Sue KaytonU.S.
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I can answer almost any student science question! I especially like ones involving silkworms, spacecraft and computers. 
Hi Aisharya I wish I could tell the name of this tree but all I know is that it is a species of Palm. I know this because I was traveling in a rain forest in Belize when our guide cut a branch off
Hi Aiswarya, An example: 1+1=2. Therefore. 1+ a = 2. Where a = 1. If I now say. 1+ h = 9. What does h have to be equal to? An example: 10 / 5 = 2. Therefore 10 / e = 2. Where e = 5. If I now
Hi Aiswarya, How does one determine area of a square? Length times width, correct? The same is true for a rectangle. So why would this be different for a paralleogram or rhombus? N the case of a
Hi Aiswarya, It's not that numbers were discovered, but rather evolved from counting on ones fingers, toes and objects. Primative man and many animals have a concept of "counting". In some cultures
A symbol, letter, mathematical sign all developed over time. Symbols and letters have been used for "missing" numbers for a very long time. It is a way to fill in the blank.
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