I've been doing a science fair project testing the effectiveness of Lactaid(TM) lactase. From a...
Can you explain where the "extra" ATP comes from in photosynthesis? As I understand it:
Does light exert force?
How does sugar conserve food?
If a sound is played to a person over a period of time, is there a way to work out (or to estimate)...
Why are there no penguins in the Arctic, or anywhere in the Northern Hemisphere?
I heard there was a woman named Rosy involved in the discovery of the DNA double helix. Who was she...
Jerry E. Allen
Is it possible to freeze water in a vacuum? Is there a chart that shows water temperature vs....
If we are making a perfume and we pour alcohol on an orange peel; why would the smell increase the...
Why do we yawn when we see someone else yawn? Why is it contagious?
How does a lightstick work, and what are the chemicals involved?
Can air in the pleural cavity cause the lungs to expand more fully than they normally would?
My grade 10 biology teacher tells us that blood comes in different shades of red (dimmer and...
justine van der Werf
I have read that when oxygen is condensed to a liquid state, or indeed to a solid state it becomes...
How much does a person's head or skull grow every year? If I'm 16, how much would it grow until it...
Why do wet objects shine?
Loubelle I. Depita
from Koronadal City, South Cotabato, Philippines
Why are egg & milk used as antidotes for heavy metal poisoning and what other household remedies...
When does each organ system of the human body reach full maturity?
from Guwahati, Assam, India
Just like 1 mole of water contains Avogadros number of molecules and has the same mass as that of...
What kind of weather is on Mercury and Saturn? Does it rain or snow on these planets?
from Andradas-MG- Brazil
When you squeeze out a piece of orange-peel on a flame, it catches fire violently. Why? What is...
If neutrinos have mass, as now seems to be the case, they cannot travel at the speed of light …...
When and how was the kaleidoscope made?
Can you tell me what the exact pH of the acid in our stomach?
How can I find out whether it takes more effort (work by pump) to increase the air pressure in a...
How would Giant Pandas being killed off affect my life?
I have a physics paper here (don't worry i am not asking you for the answers!) that says each U-235...
In Chemistry today, we learned that when HCl is ionized in water, the H2O becomes H3O+, because of...
from Los Angeles
Why do dry cell batteries (rechargeable) need to be fully drained before they can be recharged?
Are light and matter the same thing? Can you get matter from light?
In science fiction it is common to see P-P fusion, but my reading seems to indicate it is...
Why do we have five fingers? My idea is that one of nature's themes is "having enough." It's like a...
I am doing some research on microarrays. I wish to know if mRNA's also have open reading frames as...
from lahore, pakistan
There is a controversy among my collegues that during agarose gel electrophoresis the band that...
Grade One, Chesterville Public School
from Chesterville, Ontario
What do you feed baby praying mantises? We found a mother praying mantis who laid an egg sack on a...
Why does an atom have neutrons and why does a specific atom have a limited amount of isotopes. For...
I've a question about solublity, water, and cyclohexanone. Water has a certain solubility in...
Does fabric softener affect drying time of towels?
Can absolute zero (0 degrees Kelvin or -273.16 degrees Celsius) be registered on a thermometer,...
Why does HIV form resistance to ARV so quickly? HIV reproduces itself millions and millions of...
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