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Edward from Mississauga, ON asks

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

Ernie Epp from Kenora, ON asks

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

Mauro Mavrinac from Ottawa asks

Given: a horizontal rigid tube with one end on an axis at a constant rotation. Insert a solid ball...

Holly asks

What is the difference between a dolphin and a porpoise?

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...

Sharon Johnson from Tobermory asks

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

Matt from Pickering asks

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

Kiana Stewart from Blacksburg asks

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

Cristina asks

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

Base from Ontario asks

Why is vegetable oil viscous?

Vasu from London,ON asks

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

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...

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...

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...

Jestin from India asks

Why rainbow is a bow?

Jessia from Ontario asks

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

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

Why is sterilizing & using alcohol effective against microorganism?

Abhinav from Delhi asks

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

Kim Monin from Nepean, Ontario asks

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

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...

James from Hamilton asks

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

Sherri from Baltimore asks

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

Daniel from Singapore asks

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

Michel asks

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

Saurabh from New Delhi asks

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

Tsiadimos Nick from Athens, Greece asks

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

The Tucker Family from Hamilton asks

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

Courtney asks

How do mirrors work? What makes them reflect?

Wayne Boutzale asks

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

Avishan from the Internet asks

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

Andrew from Friendly asks

Who was the first scientist to study light?

Denise Atkins asks

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

Olivia from Sydney asks

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

samantha from Sarnia asks

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

Asli Tamer asks

How do bacteria use rhodopsin to create energy?

Sue from Mississauga,On. Canada asks

What is the chemical composition of soya margarine?

Bonita asks

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

Amelia Singh from scarborough asks

How are rocks made? What are the different kinds of rocks?

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...