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Kiran Gupta from Singapore asks

Why does a rare earth magnet fall slowly in an aluminium tube but it falls really fast when I toss...

Sherri from Baltimore asks

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

Holly asks

What is the difference between a dolphin and a porpoise?

John D. Miller from Belmont, NH asks

I read that one can get a wider range of colors or shades if one uses the secondary colors:...

Jessia from Ontario asks

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

Kay asks

How can a star become small and dense enough to become a black hole? My understanding is that a...

Gabby Stec from Harrisburg asks

Why, specifically, do ferrite magnets gain strength in low temperatures?

Jennifer Joseph from Dix Hills, NY asks

Animals eat leaves and grasses and this provides them nutrition. Can people take leaves off trees,...

Sarah Bosquet from Issoudun asks

I'm writing a science-fiction novel and need information about black holes, gravitation and...

Base from Ontario asks

Why is vegetable oil viscous?

Rudolf Olivier from Gauteng, South Africa asks

Water is made up of H2O. H will burn and O2 will burn. Why does water not burn?

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...

Michel Lamontagne from Edmonton asks

Why does sound get through a surface like a wall better than light? If you use a curtain they both...

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...

Ernesto C Ignacio from Malabon City, Philippines asks

I understand that in some countries it is prohibited to use industrial acetic acid to make table...

Teresa Golebiewski asks

Why doesn't oil freeze? Would it freeze at -270 degrees?

James from Montreal asks

What is a wormhole? How does it work? How is a wormhole created? Is it possible to survive going...

Kim Monin from Nepean, Ontario asks

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

Danielle Panchuk from Calgary asks

Why after drinking massive amounts of alcohol, which is a liquid, do you wake up dehydrated the...

Vasu from London,ON asks

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

Fern Marques from North Bay, Ontario asks

How can planetary angular momentum be tranferred from one body (Earth's rotation) to another...

Steve Rock asks

I'd like to model magnetic fields on my computer, but I can't find any software. Can you point me...

Jessica Muller from Hamilton, Canada asks

I have heard that some one discovered that the atom is actually made up of sound waves. Is there...

Nabita from Montreal asks

I just wanted to know if iron levels in a plant such as siverbeet can be increased by adding iron...

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...

Ernie Epp from Kenora, ON asks

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

Jestin from India asks

Why rainbow is a bow?

Ava Gabourel from New York asks

Who discovered High Blood Pressure and what year?

shane from doylestown asks

How do scientists type your blood? How do they find out your blood type?

samantha from Sarnia asks

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

Tom Henson from Bettendorf, Iowa asks

I am doing a science project on how light affects plant growth. If you could answer my 10...

tina from the Internet asks

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

Paul Hosking from Brisbane, Australia asks

We are having a debate at work that we hope you can settle. The father of one of my workmates has...

John Jones asks

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

Francis from Ottawa asks

When a ball is rotated at the end of a string in a horizontal circle (parallel to the ground) what...

Steve from Honolulu, HI asks

I'm interested in commerical lightsticks... I understand it is hydrogen peroxide and oxalate ester...

Michel asks

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

Sue from Mississauga,On. Canada asks

What is the chemical composition of soya margarine?

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...

Abhinav from Delhi asks

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