Pierce H. asks

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

özgür o?uz from Yata?an/Mu?la asks

How can an ant hold up a weight which is 50 times more heavy than ant's own weight?

Aime Roger from Halifax asks

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

Darren Connell from the Internet asks

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

Ric Martin from Houston B.C. Canada asks

Can someone tell me what Canadian frogs and toads are vocal? We have several types here, but they...

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

Why does Nitric Acid stain the human skin yellow?

Kiana Stewart from Blacksburg asks

If Virginia sees a full moon in the daytime then do places like Australia see no moon at night?

Ernie Epp from Kenora, ON asks

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

Abhinav from Delhi asks

Why do all planets revolve in elliptical orbits around the sun? I mean in nature there existis...

Matt from Pickering asks

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

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...

Jessia from Ontario asks

How high in the sky would Polaris the North Star be, as seen from the North Pole?

Cristina asks

How far is the Sun from Pluto? How long does it take for sunlight to travel to Pluto?

Sharon Johnson from Tobermory asks

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

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...

Jestin from India asks

Why rainbow is a bow?

Base from Ontario asks

Why is vegetable oil viscous?

Kim Monin from Nepean, Ontario asks

I am trying to make natural beeswax into an ivory colour. Some people say they use natural dyes. ...

Vasu from London,ON asks

Is it possible for a singularity to form outside a black hole?

James from Hamilton asks

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

Wayne Boutzale asks

What are giant ice meteorites? Would it be possible for them to hit the earth?

Saurabh from New Delhi asks

Gravity can produce motion in a body. Thus, it does work. But, for doing work, energy is needed....

Sherri from Baltimore asks

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

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

Why is sterilizing & using alcohol effective against microorganism?

Roman Tanisis from Coquitlam, BC asks

Hi was always wondering if it is ok to use a higher voltage power supply for a lower voltage...

Daniel from Singapore asks

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

Avishan from the Internet asks

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

Tsiadimos Nick from Athens, Greece asks

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

Michel asks

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

Courtney asks

How do mirrors work? What makes them reflect?

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...

The Tucker Family from Hamilton asks

How many people have ever lived on earth? We have found data giving the population at differen...

Olivia from Sydney asks

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

Denise Atkins asks

What causes asteroids to burn up once they enter earth's atmosphere?

samantha from Sarnia asks

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

Andrew from Friendly asks

Who was the first scientist to study light?

Sue from Mississauga,On. Canada asks

What is the chemical composition of soya margarine?

Dave from the Internet asks

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

Asli Tamer asks

How do bacteria use rhodopsin to create energy?

Bonita asks

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