Pablo Ros asks

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

Alvina Chung from Sydney asks

The first four facts below suggest that the earth should be getting heavier and heavier - but it...

Clare Reading from Mesa asks

What is the pH of Diet Pepsi? (or cola,generally) and... Does smoking affect the body's pH? If so,...

RR from Toronto asks

How do electric kettles work?

Sonia asks

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

KIm from Waldorf asks

What furnishs H30+ in water solution?

Teresa Golebiewski asks

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

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...

Peter Griffin from Beaufort, SC asks

Are all non-toxic claiming products really non-toxic? And is there any simple way (such as a way...

Michelle from San Jose asks

What are vinyl erasers made of?

Adil asks

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

Sarah Bosquet from Issoudun asks

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

Daniel Eyre asks

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

Jennifer Joseph from Dix Hills, NY asks

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

deepak singhal from Bangalore (India) asks

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

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...

Tony Kirk asks

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

Nijin from khd asks

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

David Magill from Shippensburg asks

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

Thomas Seltsam from Austria asks

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

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...

aparna from Petaluma asks

Why is blood salty?

Daniel Wong from Singapore asks

How do miners mine for Uranium?

Betsy Kirk asks

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

Kirandeep from Ludhiana asks

Why do proteins form lather on making their solutions?

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?

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...

Leah W. from Duluth asks

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

Dr. X from Cornberry asks

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

shane from doylestown asks

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

John Jones asks

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

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...

Liz Morice asks

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

Anita.S asks

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

Ethan Heil from Salem, VA asks

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

erin asks

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

Tom Henson from Bettendorf, Iowa asks

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

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...

julie from Soledad asks

What is the polar nature of water?

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?