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Steve from Honolulu, HI asks

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

tina from the Internet asks

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

RR from Toronto asks

How do electric kettles work?

Base from Ontario asks

Why is vegetable oil viscous?

Peter Griffin from Beaufort asks

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

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...

John Wood from Binmaley, Philippines asks

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

Edward Lotus from Mississauga, Ontario. asks

Why is it that we always can draw nice electric field lines and magnetic field lines relative to...

Marc Baldwin from the Internet asks

Can someone tell me how scientists are able to get an idea of how many foxes are in an area simply...

David from the Internet asks

During cellular respiration, why can't NADH pass its electrons to NAD+ across the inner membrane of...

julie from Soledad asks

What is the polar nature of water?

Shaun Carney from the Internet asks

What keeps electrons from eventually falling into the nucleus of an atom if they are attracted by...

Ruben from Miami asks

I would like to know if there is any way to magnetize a 6x4x1/2 inch ceramic 8 non magnetized...

Arnaldo from montreal asks

Is it possible make the aluminium transparent ?

Jonathan Weiler asks

If atoms are so small, how can we split them?

Abhinav from Delhi asks

Why do all planets revolve in elliptical orbits around the sun? I mean in nature there existis...

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?

James from Hamilton asks

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

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?

Anton St-Jacques from Kingston asks

I heard that all cells only come from existing cells. If this is true, how did the first cells...

Edward from Mississauga, ON asks

I have a wierd thinking question regarding electricity. When we have a positive charge or a...

deepak singhal from Bangalore (India) asks

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

Zulfikar Yassim asks

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

Paul Hosking from Brisbane, Australia asks

We are having a debate at work that we hope you can settle. The father of one of my workmates has...

Cynthia Everhart from Leesburg asks

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

Justin Murphy from Coquitlam asks

How does what we smell affect what we taste?

Donna Creighton from Havre de Grace MD asks

Do noses and ears continue to grow throughout the lifetime?

Olivia from Sydney asks

I was wondering about planet orbit paths and if they change. I read that a change in the Earth's...

Al Ullman asks

What is "route dependent toxicity"?

Jonathan from Brooklyn asks

I want to convert a conventional gas engine to run on hydrogen gas. How would I go about this?

Dave from the Internet asks

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

Andrea from London asks

In chemistry, how do you know what the formula of a compound is? For example, how do you know if it...

Ali from Pakistan asks

In microwave transmission sometimes we use power in positive e.g +13db and sometimes in negative...

D Selman asks

Why do I see green and orange lines in a sodium ion when my flame is the color of yellow?

Jim from Yorkton asks

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

Danielle Panchuk from Calgary asks

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

Heather Purdie from Edinburgh asks

At what age does your heart stop growing? I have just watched a program and a young girl was given...

Nijin from KHD asks

Is there any living thing that doesn't need water to survive in the whole life? If there is...

Shane Harrison from England asks

I was watching a short documentary on how the Earth first came about. The part that was puzzling me...