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Mohammed Talha Khan asks

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

Lori Lancaster asks

Why does a saturated solution of calcium acetate gel when either ethanol or isopropanol is added to...

Max from Toronto asks

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

Kevin asks

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

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...

Nikki May from Erie asks

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

Jennifer Easterly from Sydney asks

Does the diameter of a tree have anything to do with the percentage of lichen coverage on the tree?

Nicholas Delecaris asks

What is the oldest material on earth?

Alex Smith from Owen Sound asks

How can I make a simple flashlight?

Peter Baum asks

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

umit koseoglu from the Internet asks

how would i go about making some dry ice at home or in the school lab?

Kathryn H. asks

Are there any conflicting scientific views about the ozone 'hole' over the Antarctic?

Charles Kern from Detroit Lakes, Michigan asks

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

Jason from Montreal asks

What's the percentage of male and female meteorologists in Canada?

Shauna from the Internet asks

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

Krystal Cuttell asks

Who was Karl Adolf Clark?

Melodia from Montreal asks

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

Hannah from North Bay, Ontario asks

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

Mike Delie from Menomonie asks

I'm doing a senior project on recycling, and I'm curious if it uses more energy to mine and convert...

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...

collin from fort walton beach, fl asks

I just recently did an experiment using paper airplanes with different wing types (swept back at...

Mike Tripple asks

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

Rick Morrison from Sudbury On asks

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

Mike Starry from Fresno, CA asks

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

Guy from Vancouver asks

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

DeeCee from Indianapolis asks

How does vacuum insulation work and can an R Value be assigned to it? Does the depth of the vacuum...

Anonymous from the Internet asks

Why does water not sink down through the ocean floor?

Cheryl from Chesapeake, VA asks

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

bree kissner from kingsville asks

why does soda pop fizz when it is poured over ice

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...

Alain Goulnik asks

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

H. Basran from the Internet asks

Can any plants regenerate after they are totally dried - I don't mean somatic embryogenesis: can...

Ken from Vancouver asks

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

Ian Gordon from Exeter UK asks

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

Kevin Swope from San Diego/California asks

Why does Aspartame taste so sweet? What is the chemistry involved in something that tastes sweet?

Yevgeniy Perev from Staten Island asks

How much energy did the highest energy neutrino detected so far have?

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...

Eduardo from Pembroke Pines asks

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

Karla asks

What causes the bends?

Tony Sousa asks

How do hot packs work? My wife purchased a reusable hot pack for keeping our baby warm when we go...