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Ahmad asks

What are neutrinos and positrons?

John Wood from Binmaley, Philippines asks

Why do (nearly) all birds move in a jerking motion as compared with other animals that move...

Neil O. from Oshawa asks

What can you tell me about the likelihood of a major solar storm in or around 2012, and how it...

Christina from Kamloops, BC asks

What is the Vir C gene/protein responsible for?

Daniel from Singapore asks

Is there such thing as an Ice Bullet? A bullet that melts into the target so that there will be...

Karen from Ottawa, Canada asks

Why do your fingernails grow a lot faster than your toenails?

Gary John Walsh asks

What is a blue moon? When will the next one be? Are there ever two in the same year?

Jim from Yorkton asks

Why does ice make pop fizz? Shouldn't it fizz less since the gas is being cooled?

TINA from the Internet asks

How much chorline is added to drinking water? Why?

Satya from Scarborough, Canada asks

Which part of the body has highest ph value?

Sara asks

If the first dimension is length, the second is width, and the third is depth/height, what's the...

Avishan from the Internet asks

Why is the strawberry in yogurt flavored strawberry sometimes brown or reddish brown? Is it a...

Olivia from Sydney asks

I was wondering about planet orbit paths and if they change. I read that a change in the Earth's...

David Holt asks

How do farmers produce a product like seedless mandarins if they don't have any seeds to plant?

Dixie from Los Angeles asks

What is a simple way to explain miscible and immiscible liquids?

GRACE JAJA from the Internet asks

How long does it take radio waves to reach saturn?

Richard Morley from Flesherton asks

Do you have a "Sea-Monkey" life cycle?

Courtney asks

How do mirrors work? What makes them reflect?

Eddie Curtis from Portland asks

What differences are there in the three different types of lemmings?

Kirsten from Toronto asks

What is in most nail polish removers?

John Jones asks

Why has our departmental tarantula, who lives in my office, retreated into a cardboard tube and...

Steven Kelliher from Abington/ MA asks

I know this must get asked a lot, but I was wondering, and doing research on the topic and am...

Joe Joe from Scarbrough asks

What is the chemical reaction involved when dyes attach to cotton fibres? Is there any difference...

Alexis Rolling from Nampa, Alberta,Canada asks

Why was Mars formed?

Andrea from London asks

In chemistry, how do you know what the formula of a compound is? For example, how do you know if it...

Shaun Carney from the Internet asks

What keeps electrons from eventually falling into the nucleus of an atom if they are attracted by...

charl mai from Vancouver, Canada asks

Among the techniques that are being used to determine the identity of an unknown person, for...

Aditya from Noida, India asks

How does plant's inner cells respire?

Zulfikar Yassim asks

A black hole is created when a planet collapses and forms into a powerful vacuum sucking everything...

from asks

I would like to know the basic principles of work of a solid state gyroscope, such as the ones used...

Dan asks

How many galaxies do we know about and what are their names? When will the first human go to Mars?

Andrea from Sydney, Australia asks

I understand that when toilet paper gets wet eventually the cellulose fibres break apart thus...

Chloe Jones from London asks

Why do trees lose their leaves?

Becca Thompson asks

What are the names and locations in the universe of known black holes?

Ashé from Taree, Australia asks

Why is there no magnetic field in the centre of a bar magnet?

Christina from Orland Park asks

Why are most people right handed instead of left?

Anton St-Jacques from Kingston asks

I heard that all cells only come from existing cells. If this is true, how did the first cells...

Lola from the Internet asks

I am doing a science fair project about if temperature affects the digestion of protein or not. To...

Josh from New York asks

If hydrogen peroxide is bad for cells, why is it good for cuts? Also, how is it a good treatment...

Nameless from Internet asks

If we were produced from ONE cell with ONE type of DNA how could it have reproduced into trillions...