RR from Toronto asks

How do electric kettles work?

Kelvin from Markham asks

Why does the Original Coke sink into the water, when Diet Coke floats in the water?

Teresa Golebiewski asks

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

Pablo Ros asks

I have been charging a leyden jar with an electrophorous (pieplate and cup) and was wondering how...

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...

Daniel Eyre asks

How far is Pluto from the sun, and will we ever be able to travel to other planets, besides the...

aparna from Petaluma asks

Why is blood salty?

Liz Morice asks

What makes the aluminum powder in an Etch-A-Sketch stick to the glass to make an image?

Dr. X from Cornberry asks

I have made a theoretical discovery in my studies. It concerns vibrations of frame of reference in...

David Magill from Shippensburg asks

In 1828, Friedrich Wohler, a German chemist attempted to make an inorganic salt, ammonium cyanate,...

Daniel Wong from Singapore asks

How do miners mine for Uranium?

Adil asks

Has absolute zero (0 K) ever been reached a laboratory?

Sarah from Northampton England asks

How do you measure the pH of soil? How do you make up a solution of different pHs? What is the best...

Anita.S asks

What is Birute Galdikas' latest book on the Orangutan Behaviour and her work?

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:...

Thomas Seltsam from Austria asks

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

Pierce H. asks

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

Sonia asks

How could I decrease the boiling point of a substance without changing the pressure of the liquid?

Jennifer Joseph from Dix Hills, NY asks

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

erin asks

Can you explain how those bright sticks work, the ones that glow for hours with a snap and a shake?

Rehan Ahmed from Rahim yar Khan, Pakistan asks

What is vacuum ? How is it created because if we remove the air then the instrument in which we...

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...

Kirandeep from Ludhiana asks

Why do proteins form lather on making their solutions?

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

Why does Nitric Acid stain the human skin yellow?

Zambi Donburi from Brisbane, Australia asks

Is it true that no mass can travel at the speed of light? If this is true, as you are nearing the...

Harrison from the Internet asks

Why does decaying food cause gas? I have been trying to find resources but can't find any could you...

shane from doylestown asks

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

Sarah Bosquet from Issoudun asks

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

Linda Sanders from Catonsville MD asks

Why does my coffee flow more freely from a to-go cup when there are two holes in the lid instead of...

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...

Leah W. from Duluth asks

What is the smallest living thing? What is the largest living thing?

Nijin from khd asks

I read in books that bees cannot identify the colour white. Then what will the bees see instead of...

Dawn from Santa Clarita asks

Is a seed a living thing? If so, how do you prove it? Is it living before you add water?

Andrew from Friendly asks

Who was the first scientist to study light?

Jestin from India asks

Why rainbow is a bow?

Ava Gabourel from New York asks

Who discovered High Blood Pressure and what year?

Ethan Heil from Salem, VA asks

I was reading about the tensile strength of certain fabrics, and was wondering what kind of...

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?

Aime Roger from Halifax asks

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

tina from the Internet asks

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