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Ric Martin from Houston B.C. Canada asks

Can someone tell me what Canadian frogs and toads are vocal? We have several types here, but they...

David from the Internet asks

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

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...

Meghan asks

Do you have any information about Canadian scientist Dr. W. A. Smirnoff? He works on the spruce...

Peter Griffin from Beaufort asks

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

Base from Ontario asks

Why is vegetable oil viscous?

Shaun Carney from the Internet asks

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

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...

Arnaldo from montreal asks

Is it possible make the aluminium transparent ?

RR from Toronto asks

How do electric kettles work?

Ruben from Miami asks

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

Abhinav from Delhi asks

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

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...

John Wood from Binmaley, Philippines asks

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

Jonathan Weiler asks

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

julie from Soledad asks

What is the polar nature of water?

Kirandeep from Ludhiana asks

Why do proteins form lather on making their solutions?

James from Hamilton asks

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

deepak singhal from Bangalore (India) asks

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

Betsy Kirk asks

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

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?

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...

Edward from Mississauga, ON asks

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

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...

Zulfikar Yassim asks

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

Cynthia Everhart from Leesburg asks

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

Donna Creighton from Havre de Grace MD asks

Do noses and ears continue to grow throughout the lifetime?

Shane Harrison from England asks

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

Dave from the Internet asks

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

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"?

Justin Murphy from Coquitlam asks

How does what we smell affect what we taste?

Aime Roger from Halifax asks

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

Ali from Pakistan asks

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

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...

Jonathan from Brooklyn asks

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

Sarah Bosquet from Issoudun asks

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

D Selman asks

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

Nijin from KHD asks

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

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...