Are Canadian dimes made out of zinc? What about quarters, nickels, loonies and toonies?
How long would it take for the Earth to freeze if the Sun burnt out?
from London, England
How many active volcanoes are there at any onetime on the Earth, and how much "Greenhouse" gas do...
What is your personal view of global warming? Do you believe that humans are having a significant...
Is snow a conductor or an insulator?
from Durham, UK
If the world's land was distributed evenly between all humans how much would we all possess? This...
from Parry Sound
I do not know if this might relate to Global Warming, but I notice no one has mentioned (maybe I...
from Fort Knox
If the sun is a heat source, and as the sun gets closer to the earth the heat intensifies, then why...
from Wellington New Zealand
This question relates to global warming. Recent science news reports that the temperature of the...
How long would it take for the next Ice Age to develop?
from St.john's, NL
Ethanol is the focus of many tax dollars these days. It seems to me that the burning of any...
from Kuala Lumpur, Malaysia
Is it possible for the air that we breathe to either run out or deteriorate to such an extent that...
Why is the sky blue?
It truly seems that the world is indeed warming up and I do believe it is being caused by us. ...
from Vancouver, B.C.
Recently I read that U.S. scientists say the ozone layer is shrinking over Antarctica. I would be...
Can you explain paleomagnetism? From what I've read, I've learned that paleomagnetism is the study...
from Oak Ridge
I would like to know what causes inverted icicles. I have a photo I've just taken if you need to...
from Atlanta, GA
Why are the water levels of the Atlantic and Pacific Oceans different at the Panama Canal if they...
Does a volcano erupt for a certain time limit? And, is there a known degree of heat that the magma...
from the Internet
What is the chemical formula for air?
I am having a problem understanding the Earths Atmosphere. It started years ago with the simple...
Please explain an experiment that can only be done on the Spring Equinox March 21st. You can make...
from Des Moines
Does the Earth's core rotate with the crust??
from Goolwa, South Australia
At what depth into the soil do temperatures remain constant and what would that temperature be?
Who invented the nephoscope? When was it invented?
Do you have any information on Alice Wilson, the geologist?
What is the percentage of salt in the ocean?
With the volume of the earth, how many baseballs can fit inside it?
I've heard that the oceans of the Northern Hemisphere are warmer than those of the Southern...
from Boise, Idaho
My question is regarding plate tectonics. Is there a possibility that the extreme meltoff that...
I was recently reading an article about large amounts of fish dying on very hot days due to oxygen...
from Torrance, California
How far have scientist been able to dig into the earth surface?
from the Internet
What would happen if nuclear waste was dumped into a lava flow or a volcano.
Robin Shane Best
What are the values for Heating Degree-days and Cooling Degree-hours for the Toronto, Ontario area?
from Louisville, Ky USA
If you light a campfire inside a cave in a permafrost zone will condensation form on the cave...
Do all meteorologists have to work shift work before they can go on and do other things? How do you...
Do scientists have a method of breaking CO2 down to oxygen and carbon? If so, would this be more...
We weren't allowed to put in a permanent dock because it affected the ecosystem. Can you please...
Where can I find the degree day calculations for different regions in British Columbia and Alberta...
How and where is aluminum made?
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