Andrew from Friendly asks

Who was the first scientist to study light?

Danielle Panchuk from Calgary asks

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

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?

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...

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...

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?

Tony Kirk asks

Would sulfuric acid have a long term effect on an engine and eternal parts of an car if a bottle...

The Tucker Family from Hamilton asks

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

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...

James from Hamilton asks

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

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

Why is sterilizing & using alcohol effective against microorganism?

Matt from Pickering asks

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

Cristina asks

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

Asli Tamer asks

How do bacteria use rhodopsin to create energy?

Tom Henson from Bettendorf, Iowa asks

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

Denise Atkins asks

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

Shagufta asks

What are cosmic rays?

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?

deepak singhal from Bangalore (India) asks

Before getting married should we consider blood groups of both individuals? Is there any...

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...

missy cunningham from portsmouth asks

Every time we go to our local grocery store and get a buggy that does not have a chain hanging from...

samantha from Sarnia asks

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

John Douglass asks

Hexane seeps out of the ground at old sites of underground gasoline storage tanks. Can I smell...

Avishan from the Internet asks

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

John Wood from Binmaley, Philippines asks

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

Gary Kolling asks

What term is applied to all processes and physical measurements carried out under conditions of...

Cynthia Everhart from Leesburg asks

My neice is being tested for an unknown cause to her developemental delay. She has recently been...

Sara asks

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

Michel asks

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

Amelia Singh from scarborough asks

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

Ahmad asks

What are neutrinos and positrons?

Jim from Yorkton asks

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

Karen from Ottawa, Canada asks

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

Courtney asks

How do mirrors work? What makes them reflect?

Dixie from Los Angeles asks

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

Daniel from Singapore asks

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

Dave from the Internet asks

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

John Jones asks

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