Louise Abbott asks

Can you please provide background information on catalase and how it affects substrates such as...

darren liew from Singapore asks

How many times a year can you see the eclipse of the moon???

Jasmin from Brighton asks

Why are tanks (such as scuba diving tanks, for example) always designed in a cylindrical shape? In...

bruce marshall from Davie asks

In energy transformations, even on the subatomic level, is some energy always lost as thermal...

M Anderson asks

If you could dig a hole from one side of the earth to the other passing though the core, what would...

Dean Jones from Saskatoon asks

Why do we not have a mouthwash that prevents plaque buildup and, hence, gum disease?

Aaron Allen from Halifax, Nova Scotia asks

What are the top ten Canadian science discoveries?

Angie from New Tripoli, PA asks

What goes on during the change between isometric and isotonic in muscle cells? What does it look...

James Hope from Gloucester, UK asks

My dad was saying that radio waves from TV transmitter stations can burn you severely if you are...

Tracy asks

HELLO I have A VERY IMPORTANT EMAIL. THIS IS STRICTLY CONFEDENTIAL AND CONCERNS THE ENTIRE HISTORY...

Nick from Melbourne asks

I'm wondering if I have a tube filled with argon gas, or some other inert gas, and heat up a...

deepak from friendswood asks

Will sodium or ammonium nitrate react with hydrogen sulfide ? If yes, what are the expected...

Roman Tanisis from Surrey, BC asks

I have an FM transmitter for my iPod. I find that when my hand is within 5 centimetres proximity to...

Matt from the Internet asks

Why are 6volt batteries bigger than 9volts, even though 6 volts are less than 9? And why are AA,...

Reatha Tillman from Ocean Pines, MD asks

A student gave me 4 pairs of different duck and goose feet. How can I preserve them? Do I dry them...

Pankhuri Kalra from Delhi asks

Is there any reaction which can take place without the exchange of heat with the surroundings or...

Jordan Green from Toronto asks

Today a girl in my class asked the question "Can you save yourself from an elevator falling 10...

Ashis from Mumbai asks

I want to know how ascorbic acid (vitamin-c) is metabolised in the body of fishes.

Marc Baldwin from the Internet asks

In their book on the 'Mammals of Britain and Europe', MacDonald and Barrett state that Red Foxes...

Bethany Garrison from Summerville, SC asks

My mom and I are having an argument. She claims that the gene for blonde hair will be wiped out...

Joe from Atlanta, GA asks

Why are the water levels of the Atlantic and Pacific Oceans different at the Panama Canal if they...

M.Shirley from Horam, E. Sussex, UK asks

ULUru is the aboriginal name for Ayer`s Rock, which was a sacred place for native Australian...

Yevgeniy Perev from Staten Island asks

If we assume that Whitten's new Twistor String Theory is correct, with no real extra demensions,...

Dan Van Brunt from Thunder Bay asks

Recently a friend of mine took a picture of what he thought was a grasshopper out at his camp far...

Richard L. Gibbens from Colorado asks

My question concerns the latest news about the Cosmological Constant. Has it now been established...

theo baker from santa barbara asks

I have heard somewhere that there is what could be described as a secondary brain in the large...

Matt from the Internet asks

What is the chemical formula for air?

Mischa from Toronto asks

Black Holes, formed after the collapse of massive stars, are infinitely dense objects.Why is it...

Semutblue from the Internet asks

Is there a liquid chemical that will glow when electricity is passed through it? What voltage would...

Sean Polreis from Saskatoon asks

Suppose a truck transporting birds is weighed. Will there be a difference in weight depending on...

Manny from Kanata, Ontario asks

Does caffeine affect  boys and girls' blood pressure differently?

Bryn Williams from Vancouver asks

If the telomeres of a cloned organism are smaller than a non-cloned organism, and therefore may...

Jessica Hawthorn from Lac La Biche, Alberta, Canada asks

What experience and education should I get for a career in paleontology?

Darren Gough from Vancouver, BC asks

Have you ever hit the top of a glass juice bottle with your fist. It makes a very loud cracking...

Ken Hood from Batamans Bay, Australia asks

Can a normal late model petrol car engine be coverted to run on almost pure ethanol? How is this...

Ernie Epp from Kenora, ON Canada asks

Regarding the behaviour of a high-voltage spark. I have a device which generates a pulse of ...

Bobby from Oak Ridge asks

I would like to know what causes inverted icicles. I have a photo I've just taken if you need to...

Ed from Kyiv asks

Against the black plastic on my TV, dust looks white; when I wipe it off with a white tissue, dust...

Gary from Birmingham asks

Why is the time of a day measured using 24 hours?

Ali from Pakistan asks

Is it possible that a cell phone communication may start at 900 MHZ (or any other frequency) and...