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Science for Kids/Expert Profile

Ralph Salier-Hellendag

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Expertise

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

Experience in the area

Science Fair Judge for many years and have helped several students get to state level competition. Most recently 2 of my students received state level awards and one went on to the nationals in Washington DC.

Education/Credentials

BA Archaeology - Anthropology
MA Business Anthropology

Average Ratings

Recent Reviews from Users

User	Date	K	C	P	Comments
Marci	01/23/12	10	10	10	Thank you!
Shruti	01/13/12	9	9	10	Thanks for answering my question...!! That .....
alba	01/10/12	10	10	10	Thank you very much
Joshua	01/08/12	10	10	10	Thank you so much and that was .....
Leslie	12/11/11	10	10	10	Thank you for the information it will .....

Recent Answers from Ralph Salier-Hellendag

2012-02-10 Hairdryer Science Project:

Hi Phoebe, Since it does not need to be functional, it better that the wire not be connected to the battery. You can put a switch into the circuit if you want but the wire if connected to the live

2012-02-09 Hairdryer Science Project:

Hi Phoebe, No, you have what you need. Just don't attach the wire to the battery or it will heat up and could cause a fire. You can get Nichrome wire from a repair parts store or a broken toaster

2012-01-20 Earth's magnetic field:

Hi Marci, This is a great question. The Earth's magnetic poles are not like a bar magnet but very similar on a huge scale. The only thing that is really effected is a compass. Its not sure which

2012-01-18 Physics:

Hi Sophia, Torque is is the tendency of a force to rotate an object about an axis,[1] fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist. (This comes from

2012-01-12 Physics:

Hi Shruti, The easiest model to make is an electro-magnet. For this you will need a battery, a nail made of steel or iron, and a piece of insulated copper wire about 1/2 meter in length and a simple

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