from Cherry Hill
I have a question regarding starfish, or seastars, whichever you would like. Is there a species of...
Is there really a tree in Tasmania called the Huon Pine that is 20,000 years old?
from Beaufort, SC
Are all non-toxic claiming products really non-toxic? And is there any simple way (such as a way...
I'd like to know what happens to radio waves once they have been emitted. Do they live forever?...
Atalinder S. Bindra
Is it possible to reach a black hole? What is the distance of the nearest black hole from earth? Is...
from Northampton England
How do you measure the pH of soil? How do you make up a solution of different pHs? What is the best...
What happens to a compass when it is held exactly on magnetic north? Does it just spin?
I recently read a book on the big bang, and it said that protons and neutrons are made up of 3...
How do touch lamps work? If one person touches the touch pad and someone else taps his other hand,...
Why is blood salty?
Since there are no molecules within the vacuum of space to allow heat transfer, how can the air...
How do I estimate the mass of an object when I know its volume and nothing more? For example, how...
from Port Orchard, Washington, USA
Do magnets become less massive over time? It requires energy to hold a magnet on the refigerator...
Has absolute zero (0 K) ever been reached a laboratory?
How far is Pluto from the sun, and will we ever be able to travel to other planets, besides the...
from Castro Valley
Can a fast breeder reactor like the famous Candu series of Canadian designed fast reactors be...
Is it possible for a singularity to form outside a black hole?
The first four facts below suggest that the earth should be getting heavier and heavier - but it...
How do we explain the difference between cells that can repair damaged tissue, such as skin cells,...
Wilma de leon
What is the reaction between a chitin--the polysaccharide intermediate between protein and...
Are there foods to eat which lower/reduce harmful cholesterol levels, or is this achieved by...
In 1828, Friedrich Wohler, a German chemist attempted to make an inorganic salt, ammonium cyanate,...
Does mercury in its gas form act the same way as air - I mean if heated, does it rise?
Who was the first scientist to study light?
from Rahim yar Khan, Pakistan
What is vacuum ? How is it created because if we remove the air then the instrument in which we...
from Thunder Bay
Last spring and summer there were millions of army worms creeping all over everything. Maybe worse...
Is there a better alternative that has yet to be discovered other than zinc to be used in a battery?
What are the intermolecular forces for polycrystalline solids? And what is the geometric shape? I'm...
from the Internet
If two magnets are in contact with each other or close proximity to each other either repulsing or...
How can I tell the difference between Zinc and Aluminium metal?
Why don't ordinary Silicon diodes emit light like LED's?
Can you explain how those bright sticks work, the ones that glow for hours with a snap and a shake?
When a ball is rotated at the end of a string in a horizontal circle (parallel to the ground) what...
from New York
If hydrogen peroxide is bad for cells, why is it good for cuts? Also, how is it a good treatment...
What are the quantum numbers that are involved in the distinction between matter and antimatter? I...
Why does a rare earth magnet fall slowly in an aluminium tube but it falls really fast when I toss...
Bruce MacKinnon, CET
from Kitchener, Ont
Is polyol used in the reaction of isocyantes (methylene diioscyante) the same compound as Glycerol?
Why does the Original Coke sink into the water, when Diet Coke floats in the water?
from Kenora, ON
Collision of galaxie clusters. In recent news reports that I've read it has been reported...
I'm doing a science project and my topic is about the speed of sound. I was wondering if you...
Most often, your question can be answered by going to the following areas
If you have a different question, please search our archives
If your question has not already been answered, you may Ask-a-Scientist.
Created by the science.ca team, Copyright © 2001, 2015 GCS Research Society. Visitor agreement.