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Nicholas Delecaris asks

What is the oldest material on earth?

Melodia from Montreal asks

What is the main problem faced by scientists studying the use of nuclear fusion as a source of...

Michael Baird asks

Can you help me with a wonderful magic trick I performed as a boy? I made a silk rose change...

Mary Macmillan asks

How and when did the Great Barrier reef develop? Is it still developing today?

Ken from Vancouver asks

If one could increase the flow of air into a jet engine,would this increase the efficiency of the...

Eduardo from Pembroke Pines asks

Is it true that gas particles at higher altitudes are farther away from each other than at lower...

Sara asks

What is fire composed of? Could you have liquid fire, or solid fire?

Max from Toronto asks

How many water and wastewater treatment plants in Canada are using chlorine gas for disinfection?

Cheryl from Chesapeake, VA asks

I teach moon phases to my third graders. On posters, in textbooks, and online, I have seen...

Alain Goulnik asks

Can nuclear tests produce earthquakes? India started nuclear testing, then Pakistan followed in...

Charles Kern from Detroit Lakes, Michigan asks

Is there a high permeability magnetic shield that does not have iron in it?

Davina asks

Can you damage your hands by cracking your knuckles?

Sam asks

Can a 'stove' be made using methane gas produced by waste material?

Kevin asks

How can I make a plastic object? I want to make a clear or translucent, thin cylinder that is...

Marsha Anisoquili (Many Ponies) Raymond from St. Petersburg, FL, USA asks

If oriental is eastern and occidental is western, what is northern and southern?

Mohammed Talha Khan asks

Why does water evaporate when it is left out in the open?

sabahat from lahore/pakistan asks

In our body fat is stored so we get fat. If we will eat only oil we will not get heart problem...

Tracy Weddell from Bakersfield, CA asks

Do neutron stars evolve further? Charts of star evolution always show the neuton star as the last...

kathy michaels from Surrey, B.C. asks

I am doing a psychology paper on Near Death Experiences. I would like to ask if you have any...

Nikki May from Erie asks

How does heated vinegar react with powdered milk to create the result of plastic like curds?

Phil from Ottawa asks

Are there some materials that shrink faster that other materials in cold? If yes, which ones?

Mike Tripple asks

What happens to the ice cubes in our freezer bucket. They get smaller even if they are a solid. Do...

Karla asks

What causes the bends?

Edward Lotus from Wawa, Ontario asks

Is it a crime to prevent the birth of a malformed fetus? I strongly feel that we should terminate...

Ian Gordon from Exeter UK asks

Why are sounds so much louder downwind, even when the wind is light?

Peter Baum asks

How can I measure how much liquid is in an apple, lettuce, a potato, and an orange?

Linda O\'Neill from Dartmouth asks

How can you define the pressure of 5 g. on a person? This would be done with the fingers. I am...

Guy from Vancouver asks

Why did Canada pull out of the ITER fusion project, and what, if any, research is Canada...

Shauna from the Internet asks

How long can a vehicle typically run without oil or antifreeze before the engine seizes?

Rick Morrison from Sudbury On asks

What makes certain surfaces such as highway lane markings, reflective strips on clothing and...

jessi from San Francisco asks

I have more than one question: Does Coffee work better for females or males? Does Coffee work...

John Mitrosky from Scarborough asks

My son is doing a herptiles of ontario project and this a missing link question: Do you think...

Mike Starry from Fresno, CA asks

How and when will hydrogen fuel cells be used to provide electricity for my home? What would it...

Kelvin C from Markham, Ontario, Canada, North America asks

I was wondering, what solids or liquids can trap heat in very well, or at least maintain the...

D. Tolenaar asks

How does air conditioning work?

Sophie from Winnipeg asks

Why do street lights shut down, often, when we drive underneath them? Oftentimes, my boyfriend and...

Yogesh Patil asks

Can you provide a detailed structure and working of the magnetron tube used in microwave ovens?

Neil Cannon asks

Is it possible to 'see' a thermal? As the thermal is invisible to the naked eye, is there some way...

Laura from Earlton asks

How come on a warm clear day clouds form at night?

Edmund Mah asks

Are there special awards for Canadian scientists? Canadian science greats like Sir Frederick...