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Richard Hart from Victoria, BC, Canada asks

My wife asked me, "What does the sun burn and why doesn't it burn out?" I told her about helium...

erin asks

Can you explain how those bright sticks work, the ones that glow for hours with a snap and a shake?

Edward from Mississauga, ON asks

I have a wierd thinking question regarding electricity. When we have a positive charge or a...

Daniel Wong from Singapore asks

How do miners mine for Uranium?

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...

John Crowe from Dublin asks

If I knew the centre of the universe and began to travel toward it, would I begin to decrease in...

Harrison from the Internet asks

Why does decaying food cause gas? I have been trying to find resources but can't find any could you...

Darren Connell from the Internet asks

We have the ability to use sound frequency to cancel out unwanted sounds, and since light is a...

Anita.S asks

What is Birute Galdikas' latest book on the Orangutan Behaviour and her work?

tina from the Internet asks

Will pea seeds germinate slower in a liquid substace other than water? why? I am conducting an...

Ethan Heil from Salem, VA asks

I was reading about the tensile strength of certain fabrics, and was wondering what kind of...

Loubelle I. Depita from Koronadal City, South Cotabato, Philippines asks

Why does Nitric Acid stain the human skin yellow?

kumar sah from Davis Ca. asks

I want to explain to my 6 year old daughter, why the rainbow appears bent/arched in a semicircle in...

Jestin from India asks

Why rainbow is a bow?

Michel asks

If Humans and Apes are related, why aren't we able to reproduce together?

James from Hamilton asks

If 'O' (oxygen) is an element and CO2 is a compund...what is O2, or Cl2?

Matt from Pickering asks

How are genes located? For instance, Lap-Chee Tsui and his team of geneticists located the...

Shaun Carney from the Internet asks

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

Daniel from Singapore asks

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

julie from Soledad asks

What is the polar nature of water?

samantha from Sarnia asks

Is it true that only female bees can sting you? And if it is, why is that?

Bonita asks

I lost my sense of smell after a fall from a horse 5 years ago. The back of my head hit the...

Sharon Johnson from Tobermory asks

Can decomposing cedar wood chips or household compost cause environmental problems in surrounding...

Lola from the Internet asks

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

Rehan Ahmed from Rahim yar Khan, Pakistan asks

What is vacuum ? How is it created because if we remove the air then the instrument in which we...

Aime Roger from Halifax asks

I am quite confused with temperature scales! i would like to know the link between the degree...

Tsiadimos Nick from Athens, Greece asks

If we put a current-carrying conductor inside a magnetic field (i.e. between two permanent...

Pierce H. asks

Does mercury in its gas form act the same way as air - I mean if heated, does it rise?

Avishan from the Internet asks

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

Courtney asks

How do mirrors work? What makes them reflect?

Ava Gabourel from New York asks

Who discovered High Blood Pressure and what year?

Base from Ontario asks

Why is vegetable oil viscous?

Olivia from Sydney asks

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

Ernie Epp from Kenora, ON asks

Collision of galaxie clusters. In recent news reports that I've read it has been reported...

Scott Livingston from Charlottetown, Prince Edward Island asks

Looking for pictures of Tranquility base or any of the other lunar landing spots on the moon taken...

Loubelle I. Depita from Koronadal City, South Cotabato, Philippines asks

Why is sterilizing & using alcohol effective against microorganism?

Sherri from Baltimore asks

Does Henna (a plant based hair dye) contain any aluminum in its substances?

Andrew from Friendly asks

Who was the first scientist to study light?

Sara asks

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

Dave from the Internet asks

Hi, I am looking for a procedure that I can use for a science investigation. We are testing water...