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kristi from hurricane w.v asks

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

Hannah asks

I am very interested in getting into the field of Psychology and would appreciate basic and...

Jennifer Easterly from Sydney asks

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

Natasha Jackson from leaf river asks

How many skin cells would be in a square inch?

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...

Corinna asks

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

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,...

Charl Mai from Vancouver, Canada asks

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

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...

Lucy Policelli asks

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

stephanie from windsor asks

Why can't spruce trees compete with maple trees in more southern forests? What advantages do the...

Dale Patt from Kelowna asks

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

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...

Richard from Halifax, N.S. asks

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

Bobby King from Magnolia, AR asks

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

Payal from Buffalo asks

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

Chris Chase from Harrisburg asks

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

Julian asks

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

Rob Pease asks

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

Don Auld from Vancouver asks

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

steve abel from Seattle, WA, USA asks

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

Sandra Diaz asks

What wind speed would be enough to blow somebody away?

amanda from Vancouver asks

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

Mary Phipps asks

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

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?

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...

Kevin Swope from San Diego/California asks

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

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?

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...

Barbara Pearson from Holly Springs, NC asks

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

Hannah from North Bay, Ontario asks

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

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?

H.D. Lail asks

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

Carly from Colorado Springs asks

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

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...