charl mai from Vancouver, Canada asks

Among the techniques that are being used to determine the identity of an unknown person, for...

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...

Ava Gabourel from New York asks

Who discovered High Blood Pressure and what year?

Tom Henson from Bettendorf, Iowa asks

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

Thomas Seltsam from Austria asks

Is glass an amorphous mass? Old glass, for example the glass found in old churches, is much thicker...

Matt from Mississauga asks

I have been reading and learned that electrons flow from negative to positive in the external...

Stevi asks

How does shaking seeds in a jar lined with sandpaper affect the way they germinate? We shook lima...

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:...

Nabita from Montreal asks

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

Roman asks

How do scientists detect nutrinos when they have no mass and no charge?

julie from Soledad asks

What is the polar nature of water?

Sue from Mississauga,On. Canada asks

What is the chemical composition of soya margarine?

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...

Daniel from Singapore asks

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

Peter Griffin from Beaufort asks

How does the type of liquid effect the way it holds heat?

Wayne Boutzale asks

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

RR from Toronto asks

How do electric kettles work?

Willam Lockie asks

What is the protocol used to determine where each country is allowed to put its satellites to avoid...

A F Jenks from Nelson, NZ asks

When a laser is bounced off the reflector Apollo crew placed on the moon, or any light is reflected...

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...

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?

Matt from Ottawa asks

Knowing the basic functions of magnets (dipoles, domaines...) I still don't understand WHY two...

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...

Mouabbi Rami from Athens asks

Why do most industrial LASER diodes emit pulsing light beams and not continuous ones? And what is...

Mauro Mavrinac from Ottawa asks

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

Anonymous from Queens, NY asks

I would like to know why the bananas has that semi circular shape. I wonder if it is because the...

Andy (Dionne) Setlow from Madison, Alabama, USA asks

I have long struggled to understand why the temperature of various wavelengths track so closely...

E.H. from AOL asks

I understand about the Curie tempurature but I am wondering if an electromagnet has a Curie...

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...

Betsy Kirk asks

What is happening when someone plays a song on wine glasses? They are filled with different...

James from Hamilton asks

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

Gary Kolling asks

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

Sharon Johnson from Tobermory asks

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

Dallin Shaner from the Internet asks

What is the scientific explanation of why a magnet's magnetism would decrease or increase when its...

Base from Ontario asks

Why is vegetable oil viscous?

Steve from Honolulu, HI asks

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

Arnaldo from montreal asks

Is it possible make the aluminium transparent ?

Adam Bruneau from Atlanta, GA asks

I want to make sculptures out of old vinyl records by melting them down and pouring them into a...

Zulfikar Yassim asks

A black hole is created when a planet collapses and forms into a powerful vacuum sucking everything...

Linda VonCino from the Internet asks

Is there a "litmus paper" like test that can be used for testing for the amount of caffeine in a...