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Hannah from North Bay, Ontario asks

My Dad told me about bioluminescence you know, the stuff that makes living organisms glow? Anyway,...

Barbara Pearson from Holly Springs, NC asks

I was reading a text which stated that scientists have used ice cores to calculate prehistoric CO2...

ALI from miami beach asks

1)What type salary does internal medicine make? 2)What kind of education is needed for internal...

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...

Joel from Australia asks

What is the chemical makeup of an apple?

Cheryl from Chesapeake, VA asks

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

Sara asks

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

Melodia from Montreal asks

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

Mary Macmillan asks

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

Max from Toronto asks

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

Charles Kern from Detroit Lakes, Michigan asks

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

Sam asks

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

Alex Smith from Owen Sound asks

How can I make a simple flashlight?

Mohammed Talha Khan asks

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

Tracy Weddell from Bakersfield, CA asks

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

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...

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?

jessi from San Francisco asks

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

Guy from Vancouver asks

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

Nikki May from Erie asks

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

John Mitrosky from Scarborough asks

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

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...

Davina asks

Can you damage your hands by cracking your knuckles?

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...

Karla asks

What causes the bends?

Mike Tripple asks

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

Phil from Ottawa asks

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

Peter Baum asks

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

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...

Rick Morrison from Sudbury On asks

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

Tony Young from Santiago, Dominican Republic asks

I have a problem with moisture in my apartment. I live in a Caribbean country and am not able to...

Ian Gordon from Exeter UK asks

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

Shauna from the Internet asks

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

Neil Cannon asks

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

Brian from Jersey City asks

How are mountains created?

D. Tolenaar asks

How does air conditioning work?

Mike Starry from Fresno, CA asks

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

Amy L. asks

What makes the horizon glow pink and red?

Laura from Earlton asks

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