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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...

Fern Marques from North Bay, Ontario asks

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

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...

C.L.Bridger asks

What chemical additives can be used to increase the octane rating of unleaded gasoline?

Matt from Ottawa asks

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

Steve Tran asks

Hi, my name is Steve and I am a junior bodybuilder. Which one gives you the red tan, the normal...

Anita.S asks

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

Steve from Honolulu, HI asks

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

Leah W. from Duluth asks

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

Tony Kirk asks

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

erin asks

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

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?

Nikhil Bhansali from New Delhi asks

Why are the lipids found in the human body mostly even numbered?

Ethan Heil from Salem, VA asks

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

deepak singhal from Bangalore (India) asks

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

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...

Willam Lockie asks

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

M Harish from Mumbai asks

Why does a bar magnet repel when it breaks?    n====|====s

Gabby Stec from Harrisburg asks

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

Kirandeep from Ludhiana asks

Why do proteins form lather on making their solutions?

Betsy Kirk asks

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

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...

shane from doylestown asks

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

Pierce H. asks

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

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...

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...

julie from Soledad asks

What is the polar nature of water?

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...

Aime Roger from Halifax asks

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

Ava Gabourel from New York asks

Who discovered High Blood Pressure and what year?

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...

Ernie Epp from Kenora, ON asks

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

Darren Connell from the Internet asks

We have the ability to use sound frequency to cancel out unwanted sounds, and since light is a...

tina from the Internet asks

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

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

Why does Nitric Acid stain the human skin yellow?

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?

John Jones asks

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

Sharon Johnson from Tobermory asks

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