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TJ from Thunder Bay asks

Last spring and summer there were millions of army worms creeping all over everything. Maybe worse...

Phil asks

What are the chemical properties of phosphorus?

Marke Jones from Aurora, Ontario asks

Why do many pharmaceutical drugs have HCl (hydrochloride) associated with them? Is this a...

Pablo Ros asks

I have been charging a leyden jar with an electrophorous (pieplate and cup) and was wondering how...

Anonymous from Queens, NY asks

I would like to know why the bananas has that semi circular shape. I wonder if it is because the...

Paul Hosking from Brisbane, Australia asks

We are having a debate at work that we hope you can settle. The father of one of my workmates has...

vanessa demelo from paris asks

Why does insulin resistance induce weight gain? I don't understand because insulin is suposed to...

Danielle Panchuk from Calgary asks

Why after drinking massive amounts of alcohol, which is a liquid, do you wake up dehydrated the...

Dave from Sutton asks

Are there foods to eat which lower/reduce harmful cholesterol levels, or is this achieved by...

Dallin Shaner from the Internet asks

What is the scientific explanation of why a magnet's magnetism would decrease or increase when its...

Sarah Spratt asks

What is the most critical environmental problem in Canada today?

Elise asks

I have done lots of research on auroras and I understand almost every thing about them. The basic...

Gina from Boston, Massachusetts asks

I am allergic to nickel and cobalt. (thanks to patch testing). I think it was provoked by taking...

Alvina Chung from Sydney asks

The first four facts below suggest that the earth should be getting heavier and heavier - but it...

Bruce MacKinnon, CET from Kitchener, Ont asks

Is polyol used in the reaction of isocyantes (methylene diioscyante) the same compound as Glycerol?

RR from Toronto asks

How do electric kettles work?

Clare Reading from Mesa asks

What is the pH of Diet Pepsi? (or cola,generally) and... Does smoking affect the body's pH? If so,...

Kay asks

How can a star become small and dense enough to become a black hole? My understanding is that a...

Michel Lamontagne from Edmonton asks

Why does sound get through a surface like a wall better than light? If you use a curtain they both...

Ben from the Internet asks

What exactly are Proton Spin Numbers, and how can you have a non-integer proton spin number?

Fern Marques from North Bay, Ontario asks

How can planetary angular momentum be tranferred from one body (Earth's rotation) to another...

Shane Harrison from England asks

I was watching a short documentary on how the Earth first came about. The part that was puzzling me...

Sarah from Northampton England asks

How do you measure the pH of soil? How do you make up a solution of different pHs? What is the best...

KIm from Waldorf asks

What furnishs H30+ in water solution?

Jennifer Joseph from Dix Hills, NY asks

Animals eat leaves and grasses and this provides them nutrition. Can people take leaves off trees,...

Furqan from Lahore asks

Why don't ordinary Silicon diodes emit light like LED's?

Wilma de leon from Philippines asks

What is the reaction between a chitin--the polysaccharide intermediate between protein and...

Adil asks

Has absolute zero (0 K) ever been reached a laboratory?

Betsy Kirk asks

What is happening when someone plays a song on wine glasses? They are filled with different...

Peter Griffin from Beaufort, SC asks

Are all non-toxic claiming products really non-toxic? And is there any simple way (such as a way...

Amanda Gillis from Margaree asks

What are the intermolecular forces for polycrystalline solids? And what is the geometric shape? I'm...

Sarah Bosquet from Issoudun asks

I'm writing a science-fiction novel and need information about black holes, gravitation and...

Daniel Eyre asks

How far is Pluto from the sun, and will we ever be able to travel to other planets, besides the...

Tony Kirk asks

Would sulfuric acid have a long term effect on an engine and eternal parts of an car if a bottle...

Matt from Mississauga asks

I have been reading and learned that electrons flow from negative to positive in the external...

Steve from Honolulu, HI asks

I'm interested in commerical lightsticks... I understand it is hydrogen peroxide and oxalate ester...

Meghan asks

Do you have any information about Canadian scientist Dr. W. A. Smirnoff? He works on the spruce...

dave hack from brisbane asks

Nitrous oxide when used in motorsport is often classed as "forced induction" although is...

Sonia asks

How could I decrease the boiling point of a substance without changing the pressure of the liquid?

deepak singhal from Bangalore (India) asks

Before getting married should we consider blood groups of both individuals? Is there any...