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Andrea Rose asks

Why do brown or blue eyes turn green in young adulthood?

Marilyn Davidson from Windsor, Ontario asks

I would like to know if the aluminum in antiperspirants contributes to alzheimers?

Roy Donaldson from Toronto asks

Is it true that in total a bee's venom is acidic while a wasp's venom is basic? If so, would it...

Kaixin from Muar asks

Are Sedna and Quaoar two new planets?

Citre asks

What is an aluminum lake? Does it contain aluminum?

Kurt Schallitz from Livermore asks

I know that the genes for red hair and for blonde hair are both recessive. What is the likely hair...

Nick Anderson asks

Are Canadian dimes made out of zinc? What about quarters, nickels, loonies and toonies?

Andrew Foster asks

In the book Cat's Cradle by Kurt Vonnegut, Jr., there is a chemical compound called Ice-nine....

Wesley Lawson from the Internet asks

What is the amount of force in foot pounds behind the average human's punch?

Nancy Barkhouse asks

How can we re-magnetize old magnets when they've lost their power? We have a number of old magnets...

Magnus from Sweden, Malmoe asks

Which substance plays the most important role in making a blue eye blue? I have got blue eyes, but...

Kelly asks

Why does an ice cube melt faster in tap water than salt water?

Jason Bever from Valrico, Florida asks

At a bar a fellow was doing a bar trick in which he asked anyone for a piece of foil from:...

rob from the Internet asks

Is it possible for a wild koala bear to ignite as a result of the sun's radiated heat igniting the...

Heather M. Jones from Dayton asks

I would really appreciate it if someone could help me make sense of T. S. Eliot's chemistry analogy...

eray asks

Why does water reach its maximum density at +4C instead of 0C? Why is water's density greater than...

Jamie Duckett asks

In my science 9 class we recently had a discussion about physical and chemical changes. Here is the...

Tim Seeburger asks

How does an analog ammeter works and how could I make one?

Gerry MacDonald asks

Is water from a dehumidifier de-ionized? The owner's manual for my car suggests that engine coolant...

spandan jansari asks

How many satellites orbit the earth? How many are used for weather forecasting? And what is the...

Umit K from the Internet asks

Is there a way to make a simple smoke bomb that isn't poisonous or harmful? How would I be able to...

Anonymous from the Internet asks

How much liquid is in the stomach?

Mark McDonald from Morgan Hill asks

I am interested in the transmission of RF through different materials (especially water). I am...

An anonymous reader asks

Who REALLY discovered oxygen? According to an National Public Radio program, in the 1850s 3 men at...

Michael Guenther from Long Beach asks

Do you know of any analysis or test data available to show that aluminum will not spark if struck...

Jeana Willis asks

How long would it take for the Earth to freeze if the Sun burnt out?

Christine Scott from Saltspring Island, BC asks

My question is about the reproduction of the Moon Snail Polinices lewisii. Are the eggs laid...

Justin from North Bay asks

How long is a frogs tongue? I had a test question that I thought was wrong. Does a frog have a...

paul valent from quakertown asks

Is the line spectrum that is produced by a fluorescent tube the result of some of the visible light...

confused from Toronto asks

Does a person get their blood from both parents or just one? My parents seem to think that one's...

v atech from virginia asks

What is the efficiency of a typical jet engine? i.e. how much of the fuel is actually used making...

m from the Internet asks

Does water affect a magnet's strength? Do magnets lose their strength in cold temperatures? Are...

Sonia Alvarez from Bogota asks

If Entamoeba Coli is present in the human intestine can other amebic life forms survive there as...

Lupe Muratalla from dallas asks

When seperating hydrogen and oxygen from water by using electricity is there a safe way to contain...

Anna asks

Does the temperature of a magnet affect its strength?

Kenneth Hickford from London, England asks

How many active volcanoes are there at any onetime on the Earth, and how much "Greenhouse" gas do...

Ryan Dretke asks

Why are a duck's feet coloured orange?

Karen Lynn from toronto asks

I have blue eyes and am the mother of a son who has blue eyes as well. His father has brown eyes....

Michael Comeau from the Internet asks

What must occur for two parents with blood type AB to have a child with blood type O?

Jason from Virginia asks

What is the effect of sound on plants? I have come up with a lot of good information, but I have...