Biology

I would like to know if the aluminum in antiperspirants contributes to...

Biology

Why do brown or blue eyes turn green in young...

Physics

Are Sedna and Quaoar two new...

Chemistry

In the book Cat's Cradle by Kurt Vonnegut, Jr., there is a chemical compound called Ice-nine. Ice-nine is a formula that freezes anything under 114...

Biology

Which substance plays the most important role in making a blue eye blue? I have got blue eyes, but is there any way I could eat something that has a...

Medicine

What is an aluminum lake? Does it contain...

Physics

How can we re-magnetize old magnets when they've lost their power? We have a number of old magnets the children use in hands-on...

Biology

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

Chemistry

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

Physics

How many satellites orbit the earth? How many are used for weather forecasting? And what is the maximum number of satellites the Earth can...

Chemistry

At a bar a fellow was doing a bar trick in which he asked anyone for a piece of foil from: cigarette pack/ gum wrapper or aluminum foil from kitchen....

Chemistry

I would really appreciate it if someone could help me make sense of T. S. Eliot's chemistry analogy in his essay, "Tradition and the Individual...

Biology

How much liquid is in the...

Physics

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

Chemistry

Is water from a dehumidifier de-ionized? The owner's manual for my car suggests that engine coolant should be mixed with distilled or de-ionized...

Physics

Who REALLY discovered oxygen? According to an National Public Radio program, in the 1850s 3 men at the same time discovered oxygen and its use. They...

Earth

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

Chemistry

In my science 9 class we recently had a discussion about physical and chemical changes. Here is the question: if you boil water and then put a tea...

Chemistry

Why does lemon prevent the browning of apples? When browning of apples is caused by a reaction with oxygen. But lemon only helps to reduce acidity or...

Chemistry

When seperating hydrogen and oxygen from water by using electricity is there a safe way to contain the oxygen and filter out any hydrogen? And if...

Earth

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

Chemistry

I was...

Engineering

How much heat energy (watts) is released from the human body? Is there a relation to the area of skin exposed, if so can one determine how much...

Biology

I have blue eyes and am the mother of a son who has blue eyes as well. His father has brown eyes. My son's father is of East Indian extraction. None...

Earth

What is your personal view of global warming? Do you believe that humans are having a significant role on the current rising temperatures of the...

Chemistry

My son, age 12 is asking for a chemistry set for Christmas. This is an area that has always interested him and I now feel is a good time to get him...

Biology

What does cytoplasm do in the...

Physics

I have a small laser pointer. The spot produced by the beam is not a solid red circle, but a fuzzy blotch seemingly made of a dozen tiny red spots. ...

Chemistry

Why does phenolphthalein turn pink with a base? I know it has something to do with light, but i don't know exactly what makes it turn...

Physics

Why does a digital camera need a shutter- I think it should be able to electronically shunt the image to the processing chip for a specified...

Engineering

What do paper and plastic bags degrade to? How much does it cost to make a paper and plastic...

Biology

Why can't an insect grow large enough to terrorize a...

Physics

What is "time"? Does the word "time" in Physics have the same meaning as the word time in the phrase, "What time is it?" and how do scientists know...

Biology

What are the urgent steps an undergrad must take to start researching? I am a high school graduate who wants to become a scientist. I want to become...

Biology

How long can someone sustain without sleep? What factors would change that number of hours or days? Could you please provide any good sources to...

Engineering

What is the effect of sound on plants? I have come up with a lot of good information, but I have yet to develop a good way of testing my thesis. I...

Biology

I hear there are 9 species of cicadas in Canada, but I haven't been able to get any more information than that. Where are they found in Canada? Do...

Chemistry

What are water's special qualities, and how do they work? ...

Chemistry

What is...

Other

I am a year 5 teacher. I was wondering if it would be ok if I had my students work in pairs to ask you questions on the topic area of 'light'. There...

Physics

In my youth, I heard a story about an experiment: you compress a metallic spring and you put it in an acid which dissolves the spring. What happened...

Chemistry

My question: How will they produce plastics, tires, roads or anything that is made from oil, once oil runs...

Physics

If Pluto is not a planet, how is it classified? What is it called...

Earth

I do not know if this might relate to Global Warming, but I notice no one has mentioned (maybe I missed it), The fact millions of gallons of liquid,...

Biology

Is homosexuality inborn?...

Physics

If the sun is a heat source, and as the sun gets closer to the earth the heat intensifies, then why are mountian tops, which are closer to the sun,...

Physics

Does a magnetic and/or electric field have an affect on water’s ability to flow (if you can't answer that what about its affects on other aspects...

Other

What are some recent Canadian contributions to research and development? I was challenged by someone to name anything in R&D that Canada is...

Other

What is the significance of Science in our...

Biology

How long is a frogs tongue? I had a test question that I thought was wrong. Does a frog have a long tongue? I answered yes but I don't think they...

Chemistry

How does dish soap work to clean...

Other

How many scientists does Canada...

Biology

Can you verify the scientific validity of statements I've heard animal rights groups make, including that

• cow milk consumption...
  
  Read the answer...

Other

Hi, I was just wondering, I wanted to get into the whole biology scheme of things when I get older but I don't know where to get information about...

Earth

How long would it take for the next Ice Age to...

Chemistry

If matter expands when heated, and contracts when cooled, why does ice expand when water freezes? Please explain in layman...

Chemistry

The name for gas written on CNG filling station is octane. There are other members in the alkane series also, so why is only octane used and not...

Other

I was just wondering what the ratio is between male and female...

Engineering

What happens when you use ethanol (unblended) in a standard, unleaded car engine? Will it...

Physics

How does a pressure cooker work? ...

Earth

Is it possible for the air that we breathe to either run out or deteriorate to such an extent that we all slowly suffocate? Can this be caused by...

Chemistry

What are the components of a fever strip and the chemical principles behind...

Other

What is the difference between science and...

Medicine

Are cats left- or right-pawed? What percentage are left pawed/right pawed? We are doing some research on this subject for a science fair project and...

Physics

Could you please tell me what is inertia? Will it bring us more good than bad in our life? Will you please state a few applications about inertia...

Physics

In winter in very cold countries like Canada and Finland, most rivers, lakes and ponds freeze over. Cars can be driven over lakes and the ice does...

Biology

What gives yellow corn and blue corn its color? What is the specific pigment and...

Biology

What is the chemical in banana that causes...

Chemistry

Why does salt melt...

Biology

I've often wondered about this. It's kind of complicated, so bear with me... If a person suddenly one day decided to behave as if they didn't have,...

Medicine

I am doing a science fair project to measure which type of ibuprofen dissolves fastest in stomach like solutions. ie will gelcaps dissolve faster...

Medicine

How many languages are there in the...

Engineering

What is the chemical composition of basic aluminum, steel, and brass, and which metal conducts heat the best and...

Chemistry

Some shampoo is coloured in the bottle (purple or green) etc, why when you lather it up in your hair is it white? Why does your hair not turn the...

Biology

There is this question in my physics book asking me to check out the ways plants wrap themselves around a pole, some wrap themselves...

Biology

I put frozen spinach, fresh spinach, canned spinach, frozen peaches, fresh peaches and canned peaches in separate glass bottles. Before that, I...

Biology

Has anyone tried a vaccine (attenuated, similar pathogen, killed, toxoid, or subunit vaccine) for HIV? If so, what were the results? What are the...

Medicine

What is the chemical formula for...

Earth

If the world's land was distributed evenly between all humans how much would we all possess? This also goes if it were done with gold, silver, oil,...

Engineering

Since a plane's wing is designed to fly right side up, how does a plane stay up in the air when it is flying upside...

Chemistry

How is aspartame synthesized (theoretically and within industrial...

Chemistry

What type of salt melts ice the...

Chemistry

I recently removed some mercury from a thermostat and I've been told by my teacher that to touch it will not hurt me. My brother has many doubts...

Chemistry

What it the chemical composition of styrofoam? What raw material is the styrofoam made...

Physics

Why is the sky...

Biology

How long does it take bubble gum to digest after it is...

Other

What is the expecting salary for a zoologist in...

Engineering

Is it possible to make a soap bubble that you can get...

Engineering

Lightning strikes produce huge amounts of electricity. Has science looked at ways to store and use this electricity as an alternative energy source?...

Biology

Will Cyanide be a poison to brewer's yeast used to make...

Physics

Is snow a conductor or an...

Physics

My roommate insists that the first day of Spring falls on March 21st every year, yet on the calendar and on the radio they said the first day of...

Other

What are the top ten Canadian science...

Biology

Why do we not have a mouthwash that prevents plaque buildup and, hence, gum...

Physics

How many times a year can you see the eclipse of the...

Chemistry

For some reason, it is common knowledge in this community that when subjected to cold, hot water will freeze before cold water. Is there ANY basis...

Medicine

ULUru is the aboriginal name for Ayer`s Rock, which was a sacred place for native Australian peoples. ULUguru is a Tanzanian Mountain, also probably...

Biology

Why is it that when you get the chicken pox when you're little it's not as bad as getting it when you are...

Mathematics

Is it possible that a cell phone communication may start at 900 MHZ (or any other frequency) and after a specific time it turns to 850MHZ (or any...

Engineering

Would you know where I can find the temperature at which paper burns, and where I can find data for different types of paper. I thought I would find...