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Markovic Ljiljana asks

When and how was the kaleidoscope made?

Ram Ajore from Delhi, INDIA asks

What are the ways in molecular biology to show confirmation of hybridization on a solid surface for...

Lee Ming Fei asks

Why does chalk, a cylinder, always break into three pieces when it falls, and not into two or four...

Ian Hancock from Calgary asks

In Chemistry today, we learned that when HCl is ionized in water, the H2O becomes H3O+, because of...

Cathy Schroeder asks

Why do batteries behave differently when kept at different temperatures? In my science project a...

Loubelle I. Depita from Koronadal City, South Cotabato, Philippines asks

Why are egg & milk used as antidotes for heavy metal poisoning and what other household remedies...

Trevin H. from Rocklin asks

I would like to know the chemical compostion of the venom in a yellow jacket wasp sting, the dosage...

Aaron Johnston asks

What would make it possible for a man to move through solid objects? Is it at least in theory...

D. Andrew White from Toronto asks

Do different isotopes vary slightly in chemical properties? Or are they the same? i.e. are the...

Mike Noe asks

Which would hit a baseball further - a wooden bat or a aluminum bat? Why??

Brandi asks

Can air in the pleural cavity cause the lungs to expand more fully than they normally would?

Alexa Clay asks

How do scientists modify a virus so that it can be beneficial to a host cell? For example, during a...

David Keirsey asks

How did neutrinos get to be objects of such low energy? Neutrinos are supposed to have been...

Karl-Alexander berg brisebois from Dunham asks

Heisenberg's uncertainty principle tells you that the mass of a particle multiplied by the...

Mark Seymour asks

Why are there no penguins in the Arctic, or anywhere in the Northern Hemisphere?

Kyra Nabeta asks

In dealing with bacterial resistance, should doctors use the strongest antibiotics now to kill off...

Amanda from Calgary asks

I am interested in finding more information on how to detect the presence of arsenic in the foods...

Russell J. Wells Jr. from Dearborn Hts., Mich. asks

Why is the efficiency of most all lasers limited to .1% to 30%? What are the limiting factors? What...

Lisa from London asks

When does each organ system of the human body reach full maturity?

Carla Becker from Dallas asks

If we are making a perfume and we pour alcohol on an orange peel; why would the smell increase the...

George Donati from Andradas-MG- Brazil asks

When you squeeze out a piece of orange-peel on a flame, it catches fire violently. Why? What is...

Derrick Smith from Jacksonville asks

In science fiction it is common to see P-P fusion, but my reading seems to indicate it is...

Robert Wahl asks

Is it true that bats don't pass their food through but vomit it up while they are hanging upside...

Nathaniel P. Luga from Cebu City asks

What chemical or chemicals that can desolve a strong concrete structure, and what is its mixture...

Donald from Halifax asks

If neutrinos have mass, as now seems to be the case, they cannot travel at the speed of light …...

Jerry E. Allen asks

Is it possible to freeze water in a vacuum? Is there a chart that shows water temperature vs....

Citre asks

What kind of weather is on Mercury and Saturn? Does it rain or snow on these planets?

Joaquin Cornejo from Los Angeles asks

Why do dry cell batteries (rechargeable) need to be fully drained before they can be recharged?

Marcel Leone asks

Is gravity considered to be one of the forms of energy such as electricity, heat, light,...

Totoro asks

How do antiperspirant products work? Could you use one on your chest to prevent sweating?

David Graveline asks

What are the most recent theories about what existed before our big bang? Have there been one or...

Intruder from Singapore asks

How does a lightstick work, and what are the chemicals involved?

peel from the Internet asks

What would happen if the nucleus of an atom contained too many or too few neutrons, or even none? ...

Brooke from the Internet asks

How do you find the solubility of a substance?

Furqan from Lahore asks

Do bends in a wire affect its electrical resistance ?

David Critch asks

My grade 10 biology teacher tells us that blood comes in different shades of red (dimmer and...

Stephen Leece from London asks

I am currently researching how sugar (sucrose) reacts with various chemicals. I am particularly...

Garry McKay from Melbourne asks

I've a question about solublity, water, and cyclohexanone. Water has a certain solubility in...

James Hope from Gloucester asks

I have a physics paper here (don't worry i am not asking you for the answers!) that says each U-235...

A.E. asks

Why do we have five fingers? My idea is that one of nature's themes is "having enough." It's like a...