Earth

Kenneth Hickford From London, England, asks,

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


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Jeana Willis asks,

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


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Nick Anderson asks,

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


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Neil O. From Oshawa, asks,

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...


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Corey Conner From Fort Knox, asks,

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,...


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J. Fretwell From Parry Sound, asks,

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,...


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D.D. From St.john's, NL, asks,

Ethanol is the focus of many tax dollars these days. It seems to me that the burning of any hydrocarbon is going to contribute to added...


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Kym McCallum From Gladstone, asks,

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


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John Wrowles From Wellington New Zealand, asks,

This question relates to global warming. Recent science news reports that the temperature of the earth is at a million year high. I understand that...


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Jonathan From Kuala Lumpur, Malaysia, asks,

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...


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Simon Robson From Durham, UK, asks,

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,...


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kaushik From bangalore, asks,

Why is the sky...


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Shauna From Winnipeg, asks,

Is snow a conductor or an...


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Greg Kutz From Calgary, asks,

It truly seems that the world is indeed warming up and I do believe it is being caused by us. However, what is the irrefutable evidence that this...


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Joe From Atlanta, GA, asks,

Why are the water levels of the Atlantic and Pacific Oceans different at the Panama Canal if they are all part of the same body of water? Is there a...


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Matt From the Internet, asks,

What is the chemical formula for...


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Chelsea S asks,

Can you explain paleomagnetism? From what I've read, I've learned that paleomagnetism is the study of magnetism in ancient rocks, and several million...


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Bobby From Oak Ridge, asks,

I would like to know what causes inverted icicles. I have a photo I've just taken if you need to see it. Our puppy's water bowl outdoors has had...


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George Yacoub From Sydney, asks,

I am having a problem understanding the Earths Atmosphere. It started years ago with the simple observation that the molecules in water weigh less,...


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Jenifer From Vancouver, B.C., asks,

Recently I read that U.S. scientists say the ozone layer is shrinking over Antarctica. I would be interested to know what Canadian scientists say...


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Nicole From Des Moines, asks,

Does the Earth's core rotate with the...


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Greg Kutz From Goolwa, South Australia, asks,

At what depth into the soil do temperatures remain constant and what would that temperature...


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Jason From Vernon, asks,

Does a volcano erupt for a certain time limit? And, is there a known degree of heat that the magma is...how hot is...


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Judy asks,

What is the percentage of salt in the...


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Anonymous From the Internet, asks,

What would happen if nuclear waste was dumped into a lava flow or a...


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Robin Shane Best asks,

What are the values for Heating Degree-days and Cooling Degree-hours for the Toronto, Ontario...


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Mary Schroeder From Weston, asks,

I was recently reading an article about large amounts of fish dying on very hot days due to oxygen depletion on Long Island. I was wondering, what...


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Caitlin Drewery asks,

Do you have any information on Alice Wilson, the...


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Alli From Cincinnati, asks,

I've heard that the oceans of the Northern Hemisphere are warmer than those of the Southern Hemisphere.  Why is this...


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Jon From Ottawa, asks,

Who invented the nephoscope? When was it invented? ...


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Carolin asks,

Please explain an experiment that can only be done on the Spring Equinox March 21st. You can make eggs stand up on end by themselves, but only on...


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H. From Boise, Idaho, asks,

My question is regarding plate tectonics. Is there a possibility that the extreme meltoff that we're seeing in the Arctic Circle could cause...


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Brittany Tardif From Cornwall, asks,

We weren't allowed to put in a permanent dock because it affected the ecosystem. Can you please explain the effects on the ecosystem of the St....


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Stephanie From Vancouver, asks,

Where can I find the degree day calculations for different regions in British Columbia and Alberta for 2001, 2002 and 2003? They are not listed on...


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Chris Shipman asks,

Do scientists have a method of breaking CO2 down to oxygen and carbon? If so, would this be more cost effective than pumping CO2 into the...


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Sherry asks,

Do all meteorologists have to work shift work before they can go on and do other things? How do you handle being wrong all the...


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Philip Newman asks,

How and where is aluminum...


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Stef asks,

How are minerals used in the production of Canadian coins? ...


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Matt Gatton From Louisville, Ky USA, asks,

If you light a campfire inside a cave in a permafrost zone will condensation form on the cave walls? Can you speculate on this? We are writing a...


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Adrian From Torrance, California, asks,

How far have scientist been able to dig into the earth...


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Selena Henderson From Houston, asks,

Why don't hurricanes hit the country of Panama? Is there any data predicting the probability of hurricanes hitting Panama within the next 10 years? ...


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James McCarty From Frankfort, Kentucky, asks,

Evacuations of the earth's core through volcano eruptions, the pumping of oil, gas, etc., must leave voids. If this is so, what will eventually...


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Eric Chan asks,

I am considering an idea to measure the effects of ozone depletion. I intend to use an ozone making machine in my school, and mix ozone with say,...


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Barbara Pearson From Holly Springs, NC, asks,

I was reading a text which stated that scientists have used ice cores to calculate prehistoric CO2 levels and temperatures. I can understand how...


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Darren Mewha asks,

Why are clouds flat on the bottom? Is it because the air is somehow denser on the level below the...


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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 26, 2004, the earth's spin axis has changed 2.5 cm...


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Mary Macmillan asks,

How and when did the Great Barrier reef develop? Is it still developing...


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Payal From Buffalo, asks,

How do you determine the proportion of the various gases in the...


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Lenny Rivera From New York, asks,

I am looking for general inofrmation about pangaea the supercontinent. If pangaea was a super continent that encompassed all the current continents...


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Max From Toronto, asks,

How many water and wastewater treatment plants in Canada are using chlorine gas for...


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Tim Sullivan asks,

What exactly do meteorologists mean by the term "high pressure"? Do they mean the weight of the column of air above ground or is it some...


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Christobell Bison From Sudbury, asks,

Can Ozone be created? And if so, is it possible to patch up the Earth's protective layer of Ozone with...


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Bobbi Jo From Wyalusing, asks,

With the volume of the earth, how many baseballs can fit inside...


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Anonymous From the Internet, asks,

Why does water not sink down through the ocean...


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Nicholas Delecaris asks,

What is the oldest material on...


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Sandra Diaz asks,

What wind speed would be enough to blow somebody...


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KENNETH HICKFORD From LONDON ENGLAND, asks,

(1) What quantities of the earths atmosphere are lost to outer space over a given time? (2) how much is added to the earths mass by meteorites and...


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Kathryn H. asks,

Are there any conflicting scientific views about the ozone 'hole' over the...


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Laura From Earlton, asks,

How come on a warm clear day clouds form at...


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Eduardo From Pembroke Pines, asks,

Is it true that gas particles at higher altitudes are farther away from each other than at lower altitudes, and, if this is true, does it apply to...


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Ian Gordon From Exeter UK, asks,

Why are sounds so much louder downwind, even when the wind is...


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Curious_Boy From the Internet, asks,

How do fronts affect temperature? Do pressure centres affect temperature as well? I know that they determine whether the sky is clear or cloudy, but...


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Alain Goulnik asks,

Can nuclear tests produce earthquakes? India started nuclear testing, then Pakistan followed in 1998. Then early in 1999, there was an earthquake in...


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Jesse Fitzpatrick asks,

What is the highest and lowest canadian recorded air...


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david asks,

Why are the time zones on maps rated as longitude & latitude in degrees and...


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Thalia Parcs From Toronto, asks,

I have noticed in Toronto for the past two years, that the weather has been abnormally cloudy in the Fall/Winter. Is this a short-term phenomenon or...


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Brian From Jersey City, asks,

How are mountains...


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amanda From the Internet, asks,

How does cold front differ from warm front? How does a slow moving cold fromt differ rom a fast moving cold front? In which direction does the wind...


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Amy L. asks,

What makes the horizon glow pink and...


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David From Blacksburg, asks,

Why does solar energy lose some of its strength when entering through the...


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MacArthur Kaleel From Atlanta, Georgia, asks,

We all know that earthquakes are one of the primary causes of mountain formation. Does the resulting mountain have an effect of limiting subsequent...


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Courtney From Jacksonville, NC, asks,

Mt.Everest has two peaks, correct? What is the height of Mt.Everest' second...


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Ken Marshall From Sault Ste Marie, asks,

Since trees hold CO2 and produce oxygen, why would it not be beneficial to have marginal farmland planted in trees, possibly through a...


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Larry King asks,

How can you measure the energy of an ocean wave? Is there a reasonably simple equation that describes the energy in water...


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Sara asks,

What happens to a compass when it is held exactly on magnetic north? Does it just...


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DeeCee From Indianapolis, asks,

Is there a standard formula that will convert altitude into pressure? I'm interested in altitude from sea level to approx. 500,000 feet. I would like...


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Neil Cannon asks,

Is it possible to 'see' a thermal? As the thermal is invisible to the naked eye, is there some way to detect either the heat (as the thermal is...


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Michel lamontagne From edmonton, asks,

I am wondering how water/air changes it's molecular structure so that when air is heated it contains(potentially) more water than when it is cooler....


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Awot Negash From Alexandria, VA, USA, asks,

What is the relationship between rain intensity/rain rate and visibility? What resources can I refer to for further...


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Gareth Cook From St. John's, Newfoundland, asks,

If, as we know, Carbon dioxide - a potent greenhouse gas - is heavier than air,  why is it a problem in the upper...


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Rowland Craig From San Antonio, Texas, asks,

What is the volume of breathable air on the earth? Perhaps as one...


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Morgan From Ajax, asks,

If air is a gas, and gas explodes when heated (in an eclosed space, the atmosphere), does that mean that if the Earth gets hot enough, it will blow...


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Laura From Toronto, asks,

Why does lake water change temperature at a slower rate than the...


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Michael Chen From Calgary, asks,

Is there any evidence that the Green House Effect is not caused by industral gas...


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nijin From Khd, asks,

How did dinosaurs die? If they died due to a comet impact on the Earth there will be dust particles of comet someplace. Is there...


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Pat Prokop From Orillia, asks,

Last year a friend of mine widened and deepened an existing pond on his property. A considerable amount of grey clay was excavated at the time. The...


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Kristi From Saskatoon, asks,

I would like to know how much oxygen is in our breathable air, and also if it has ever been 50%. If so, when? ...


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Charles From Vancouver, BC, asks,

The earth receives energy in the form of radiation from the sun. Some is re-emitted into space and some heats the surface of the earth, the...


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Antreas Alvanis From Limassol, Cyprus, asks,

If global warming exists and a large amount of energy is trapped in earth every day, why do we need extra solar energy? If all that energy becomes...


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Lev From Vancouver, asks,

What would happen if the Earth were to very gradually stop spinning? Would one side become unimaginably hot, and the other freezing cold? If so,...


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trish brooks From Ottawa, asks,

We used to have a wooden stick on the outside of our house. It measured air pressure or humidity or something. It seemed that when the air...


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