Science for Kids/Expert Profile

Average Ratings

• Knowledgeability 9.83
• Clarity of Response 9.77
• Timeliness 9.88
• Politeness 9.96

• Number of Questions (in Past 24 Hours) 0
• Max Questions to be Asked (in 24 Hour Period) 10
• Total Questions (since joining AllExperts) 1092
• Volunteer Since 2004-09-18
• Prestige Points 14922

Recent Reviews from Users

Read More Comments

    K = Knowledgeability    C = Clarity of Response    T = Timeliness    P = Politeness

User	Date	K	C	T	P	Comments
Victor	10/29/09	10	10	10	10
Oge	10/25/09	10	9	10	10
Evelyn	10/22/09	10	10	10	10	Thank You. This is a science class .....
Rosie	10/21/09	10	10	10	10	Thanks SOOOO much!!!! I have now got .....
emma	10/20/09	10	10	10	10	Thank you for your help Ralph

Recent Answers from Ralph Salier-Hellendag

2009-11-07 Science:

Hi John Have you looked at all of the egg drop project ideas on the internet? There are tons of ideas! Here are just a few of the web sites: www.physicsforums.com/showthread.php?t=186507 malaysia

2009-11-07 Change 240V christmas lights to solar lighting:

Hi Carol, This can be done but generally you will need some additional equipment besides a Photovoltaic solar panel array. You will need the following list of equipment: Power converter - This converts

2009-11-04 Forensics keywords:

Hi Rosie, here in the states we have science fair competitions and these are key words used in these science fairs. So I will set up an experiment as an illustration for these words: I want to compare

2009-11-04 carbonation:

Hi Kimberly, Soda like Coke, Pepsi etc... are artificially carbonated. This is done by injecting CO2 (Carbon Dioxide Gas) into the drink just prior to sealing the container under pressure which keeps

2009-11-04 biology questions:

Hi Diana, This is a very hard question to answer because there is a great deal of diversity in the size of these organelles. Mitochondria can be from .2 to10 micrometers in size while Chloroplast can