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Rob Pease asks

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

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?

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...

Kevin Swope from San Diego/California asks

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

Hannah from North Bay, Ontario asks

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

Corinna asks

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

Eli Sklar asks

What education do you need to become an embryologist?

Alain Goulnik asks

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

Hannah asks

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

Chris Chase from Harrisburg asks

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

Don Auld from Vancouver asks

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

stephanie from windsor asks

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

Tony from Melbourne asks

In my recent science project, I tried discharging batterys in the freezer, fridge and room. The...

Rena from Thornhill asks

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

Antony St-Jacques from Kingston asks

How can I separate NaCl so I can obtain Na?

kristi from hurricane w.v asks

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

Julie asks

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

Kaycie Nabeta asks

Can you explain where the "extra" ATP comes from in photosynthesis? As I understand it: 24 ATP...

kathy michaels from Surrey, B.C. asks

I am doing a psychology paper on Near Death Experiences. I would like to ask if you have any...

Nicholas Delecaris asks

What is the oldest material on earth?

H. Basran from the Internet asks

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

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...

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...

Cheryl from Chesapeake, VA asks

I teach moon phases to my third graders. On posters, in textbooks, and online, I have seen...

Bobby King from Magnolia, AR asks

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

Mohammed Talha Khan asks

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

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...

Mark Brooks from London asks

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

Ken from Vancouver asks

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

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....

Tracy Weddell from Bakersfield, CA asks

Do neutron stars evolve further? Charts of star evolution always show the neuton star as the last...

Nikki May from Erie asks

How does heated vinegar react with powdered milk to create the result of plastic like curds?

Mary Phipps asks

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

H.D. Lail asks

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

jessi from San Francisco asks

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

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,...

Payal from Buffalo asks

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

Julian asks

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