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Donald Plourde from East Mapleton asks

If I have two 6 volt lead acid Batteries with a 400 ampere hour charge in each one. And I wire the...

Natasha Jackson from leaf river asks

How many skin cells would be in a square inch?

Rena from Thornhill asks

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

Jennifer Easterly from Sydney asks

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

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....

Charl Mai from Vancouver, Canada asks

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

stephanie from windsor asks

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

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...

kristi from hurricane w.v asks

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

Antony St-Jacques from Kingston asks

How can I separate NaCl so I can obtain Na?

Lucy Policelli asks

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

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,...

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...

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...

Dale Patt from Kelowna asks

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

Kevin Swope from San Diego/California asks

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

Julian asks

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

Richard from Halifax, N.S. asks

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

amanda from Vancouver asks

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

Don Auld from Vancouver asks

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

Rob Pease asks

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

Sandra Diaz asks

What wind speed would be enough to blow somebody away?

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...

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...

steve abel from Seattle, WA, USA asks

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

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?

ALI from miami beach asks

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

Marty Ellis from Pittsburgh asks

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

Gerhard asks

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

Melodia from Montreal asks

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

Alex Smith from Owen Sound asks

How can I make a simple flashlight?

H.D. Lail asks

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

Nicholas Delecaris asks

What is the oldest material on earth?

Joel from Australia asks

What is the chemical makeup of an apple?

H. Basran from the Internet asks

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

Hannah from North Bay, Ontario asks

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