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Gerald Taylor from El Dorado, Arkansas asks

I was wanting to make my own acid stain for concrete. I have muriatic acid and heavy metals...

Jennifer Easterly from Sydney asks

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

Corinna asks

Can stabilized oxygen be used in place of iodine or chlorine to purify water? What if used in...

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...

Charl Mai from Vancouver, Canada asks

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

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...

Antony St-Jacques from Kingston asks

How can I separate NaCl so I can obtain Na?

Julie asks

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

Chris Chase from Harrisburg asks

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

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...

kristi from hurricane w.v asks

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

Kevin Swope from San Diego/California asks

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

Sandra Diaz asks

What wind speed would be enough to blow somebody away?

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,...

Bobby King from Magnolia, AR asks

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

Rob Pease asks

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

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....

Don Auld from Vancouver asks

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

Payal from Buffalo asks

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

H.D. Lail asks

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

Marty Ellis from Pittsburgh asks

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

Lucy Policelli asks

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

Nicholas Delecaris asks

What is the oldest material on earth?

Julian asks

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

Mark Brooks from London asks

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

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...

Gerhard asks

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

Dale Patt from Kelowna asks

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

amanda from Vancouver asks

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

steve abel from Seattle, WA, USA asks

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

Ken from Vancouver asks

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

umit koseoglu from the Internet asks

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

H. Basran from the Internet asks

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

Michael Baird asks

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

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...

Alain Goulnik asks

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

Carly from Colorado Springs asks

When a group of cancerous cells is compared to a group of normal cells, cancerous cells usually...

Mary Phipps asks

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

Hannah from North Bay, Ontario asks

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