Lori Anne Stanger from New Liskeard, Ontario asks

As everyone had heard in the news, as a result of the Indian Ocean earthquake and Tsunami of Dec...

Rena from Thornhill asks

For school I need to know about natural convection and forced convection. I need to know the...

Julie asks

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

kirst from the Internet asks

What everyday appliance uses electrostatics?

Azadeh from Tehran asks

If we heat a square metal page with a circle hole in the center of it, what will happen to both the...

Charl Mai from Vancouver, Canada asks

Do herbal medicines interfere with the effectiveness of prescription medicines? If so, how does...

Jennifer Easterly from Sydney asks

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

Richard from Halifax, N.S. asks

How do you calculate water flow rate (volume/sec) based on water pressure and hole or pipe size?...

kristi from hurricane w.v asks

If a person or infant is going to get freckles, at what point or age do they appear?

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....

Andrew Hope from Gloucester asks

My son, James, and I cannot agree about the recoil of a gun. I believe that if a gun is fixed in a...

Kevin Swope from San Diego/California asks

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

Chris Chase from Harrisburg asks

Has anyone ever weighed nuclear reactions in reactors to see if the reactor weighs more while...

Sandra Diaz asks

What wind speed would be enough to blow somebody away?

Antony St-Jacques from Kingston asks

How can I separate NaCl so I can obtain Na?

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,...

Lucy Policelli asks

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

Payal from Buffalo asks

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

Dale Patt from Kelowna asks

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

Bobby King from Magnolia, AR asks

My son's girl friend's maternal Grandmother and paternal Grandmother both have the same birthday...

Don Auld from Vancouver asks

In the CANDU nuclear reactor, what initiates the fission process? I understand that the U235 in the...

Julian asks

How can I make my own methylated spirit? How does pectin gel?

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...

Rob Pease asks

How can we reshape bone using our understanding of bone growth? Obviously, parts, if not all of a...

steve abel from Seattle, WA, USA asks

Can you explain the meaning of the phrase: " has cleared the neighbourhood around its orbit.” I...

amanda from Vancouver asks

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

H.D. Lail asks

What is the difference between animal hibernation and a human coma? These states appear similar,...

Gerhard asks

What kind of permanent changes in a developing child's brain or behaviour can be caused by the...

Marty Ellis from Pittsburgh asks

Can a sintered ore magnet be re-magnetized in a different configuration of its poles? Does it need...

Mark Brooks from London asks

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

umit koseoglu from the Internet asks

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

Barbara Pearson from Holly Springs, NC asks

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

Mary Phipps asks

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

Eduardo from Pembroke Pines asks

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

Nicholas Delecaris asks

What is the oldest material on earth?

ALI from miami beach asks

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

H. Basran from the Internet asks

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

Joel from Australia asks

What is the chemical makeup of an apple?

J. Etter from Eureka asks

Have any cures for any specific viruses been found? By cure I mean the ability to rid the body of...

Hannah from North Bay, Ontario asks

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