from Houston B.C. Canada
Can someone tell me what Canadian frogs and toads are vocal? We have several types here, but they...
Why do I see green and orange lines in a sodium ion when my flame is the color of yellow?
How could I decrease the boiling point of a substance without changing the pressure of the liquid?
from Davis Ca.
I want to explain to my 6 year old daughter, why the rainbow appears bent/arched in a semicircle in...
from New Delhi
Gravity can produce motion in a body. Thus, it does work. But, for doing work, energy is needed....
A F Jenks
from Nelson, NZ
When a laser is bounced off the reflector Apollo crew placed on the moon, or any light is reflected...
from the Internet
We have the ability to use sound frequency to cancel out unwanted sounds, and since light is a...
Would sulfuric acid have a long term effect on an engine and eternal parts of an car if a bottle...
How do electric kettles work?
If Virginia sees a full moon in the daytime then do places like Australia see no moon at night?
from New York
Who discovered High Blood Pressure and what year?
Why do proteins form lather on making their solutions?
from Binmaley, Philippines
Why do (nearly) all birds move in a jerking motion as compared with other animals that move...
What is the polar nature of water?
from Charlottetown, Prince Edward Island
Looking for pictures of Tranquility base or any of the other lunar landing spots on the moon taken...
I was watching a short documentary on how the Earth first came about. The part that was puzzling me...
Given: a horizontal rigid tube with one end on an axis at a constant rotation. Insert a solid ball...
from the Internet
During cellular respiration, why can't NADH pass its electrons to NAD+ across the inner membrane of...
In microwave transmission sometimes we use power in positive e.g +13db and sometimes in negative...
from Santa Clarita
Is a seed a living thing? If so, how do you prove it? Is it living before you add water?
A black hole is created when a planet collapses and forms into a powerful vacuum sucking everything...
I would like to know if there is any way to magnetize a 6x4x1/2 inch ceramic 8 non magnetized...
from Mississauga, ON
I have a wierd thinking question regarding electricity. When we have a positive charge or a...
from Catonsville MD
Why does my coffee flow more freely from a to-go cup when there are two holes in the lid instead of...
My neice is being tested for an unknown cause to her developemental delay. She has recently been...
from Bangalore (India)
Before getting married should we consider blood groups of both individuals? Is there any...
What is happening when someone plays a song on wine glasses? They are filled with different...
What is "route dependent toxicity"?
I'm writing a science-fiction novel and need information about black holes, gravitation and...
Is it possible make the aluminium transparent ?
If 'O' (oxygen) is an element and CO2 is a compund...what is O2, or Cl2?
What are the names and locations in the universe of known black holes?
I heard that all cells only come from existing cells. If this is true, how did the first cells...
At what age does your heart stop growing? I have just watched a program and a young girl was given...
I was wondering about planet orbit paths and if they change. I read that a change in the Earth's...
I am quite confused with temperature scales! i would like to know the link between the degree...
How does what we smell affect what we taste?
from Havre de Grace MD
Do noses and ears continue to grow throughout the lifetime?
from Sydney, Australia
I understand that when toilet paper gets wet eventually the cellulose fibres break apart thus...
from the Internet
Hi, I am looking for a procedure that I can use for a science investigation. We are testing water...
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