Julie asks

What is the chemical make-up of pear, banana and apple peels?

Shaheena Perveen from Karachi, Pakistan asks

Why do we get coloured water if we put a slice of beet root in water but we do not get coloured...

Mohammed Talha Khan asks

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

jessi from San Francisco asks

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

Mark Brooks from London asks

Why do ice cubes melt quicker on stainless steel than a china plate and fire clay?

Brian from Avon Lake asks

I am doing a report on aluminum and the impact it has on our environment for a science class. Do...

David from Kitchener, Ontario, Canada asks

My question may be hard to answer. I have wanted to be a scientist since I knew what science was,...

Mary Phipps asks

Is calcium carbonate (ground limestone) biodegradable? Will it break down during composting? I want...

Ian Burke asks

What do you think of a Gas/Electric hybrid car? I made a power generation device made up of 8 a.c....

Payal from Buffalo asks

How do you determine the proportion of the various gases in the air?

Peter Baum asks

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

Joel from Australia asks

What is the chemical makeup of an apple?

Lucy Policelli asks

Is it feasible to embed microchips carrying pertinent data, health, history, money etc. into humans?

amanda from Vancouver asks

What kind of careers are there to choose from, based on chemistry and biology. To become a doctor,...

Mike Tripple asks

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

Dale Patt from Kelowna asks

What exactly is "Bovine Spongiform Encephalopathy" (BSE), or mad cow, what are it's effects, and...

umit koseoglu from the Internet asks

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

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...

Melodia from Montreal asks

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

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...

Rowland Craig from San Antonio, Texas asks

What is the volume of breathable air on the earth? Perhaps as one atmosphere?

Mary Macmillan asks

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

Amy L. asks

What makes the horizon glow pink and red?

ALI from miami beach asks

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

Alex Smith from Owen Sound asks

How can I make a simple flashlight?

Ian Gordon from Exeter UK asks

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

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?

Phil from Ottawa asks

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

Yogesh Patil asks

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

Rick Morrison from Sudbury On asks

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

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...

D. Tolenaar asks

How does air conditioning work?

Jesse Fitzpatrick asks

What is the highest and lowest canadian recorded air temperature?

Shauna from the Internet asks

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

Raymond J. Sucgang from Manila, Philippines asks

Hi, Could you please clarify: Does an increase in precision mean a decrease in accuracy? Does a...

Josh Blake from Mississauga, Ontario asks

I am really interested in chemistry and I was wondering where I would be able to purchase some of...

Kathryn H. asks

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

Chelsea Imm from Glandorf, OH asks

Can you please tell me what the basic preservatives are in the following breads: white, wheat,...