Hunter Smith asks

How does the amount of air inside a soccer ball affect the distance it travels? And how is the...

Dean Jones from Saskatoon asks

Why do we not have a mouthwash that prevents plaque buildup and, hence, gum disease?

Mary Schroeder from Weston asks

I was recently reading an article about large amounts of fish dying on very hot days due to oxygen...

Rick James from palm springs asks

I'm just curious why we humans are the only species on this planet that have to manufacturer...

Lu Chen asks

Where could I find some interesting facts and pictures on Christa McAuliffe?

Citre asks

What is tocopheryl acetate? It's also called Vitamin E acetate. Is it like the chemical acetone...

Nesa Xiong from Sacramento, CA asks

How long does it takes your hair to grow? How many years and how many inches?

Judy asks

What is the percentage of salt in the ocean?

Kaitlyn Muller asks

Could you tell me who discovered arsenic and when?

Jeremy, Shawn, and Angel from Orland, California asks

How does medicine (for example, Contact) work in your stomach after you have taken a pill?

Mike from Hamilton asks

Who discoverd dinosaurs? Tyrell?

Adrian from Torrance, California asks

How far have scientist been able to dig into the earth surface?

Elizabeth from Oshawa asks

How was life created and why did we start living on earth, or why was it the "chosen" place? i...

Michelle asks

I want to study and work with animals and their environment. Is there an occupation like this? What...

Stephenie from cedarbrook middle school asks

In our science class we are doing a project about stereotyping scientists. We want to see if the...

Colin Groves from Kansas City, Kansas, U.S.A. asks

How do you become a scientist? What do scientists do in a normal day? What did you study in college...

Stephen Venneman asks

Could you explain what the fourth dimension is, exactly? Upon looking at an example put up by...

Donald from St. Johns, Newfoundland asks

Comparing the storage capacity of the human brain to computers, if data and memories in a human...

Brian from Vancouver, BC asks

I've heard that alcohol can be passed to a baby through breast milk. Is this true and if so what is...

Brendan Chase asks

Who is David Suzuki?

Cheryl Wess asks

Why when you make lollypops do you have to boil the ingredients to 300 degrees for it to harden?

Ben Marengo from Manchester, England! asks

Why does a sperm in the female reproductive system not get attacked? It has foreign antigens, which...

Diana from Tucson asks

How large is a human genome? What percentage of the DNA in the Human Genome actually codes for...

D. Ripley from Ontario asks

Why is milk sometimes referred to as being a homogeneous mixture, while at other times it is said...

Satish from Bangalore (India) asks

What is meant by booting in a computer?

Andrew Brown from New york asks

What does the word enzyme mean and how does it work in laundry detergent?

Anonymous from the Internet asks

Do all pencil lead erase the same? Why or why not? Which pencil lead erases the best?

Frieda Trowbridge from Central Butte, Sask asks

Could you tell me the symptoms when given either thalium or strychnine?

Lindsay from New York City asks

What is the chemical make-up of film? I am searching for a detailed make-up of either 35mm film for...

John asks

How can I determine the specific gravity of a small rock? I have a very accurate digital scale, but...

Elizabeth from Los Angeles, CA asks

I'm doing a science report on Arsenic and i was wondering do you know what is the meaning of the...

Philip Newman asks

How and where is aluminum made?

Alysha Gulutzan asks

How many electrons, protons, and neutrons make up a nickel atom?

Stephanie from Vancouver asks

Where can I find the degree day calculations for different regions in British Columbia and Alberta...

David from the Internet asks

Where did the constant pi (3.14159...) come from? Who discovered it and when?

Linda Horsman from Gibsons, BC asks

What is the cause of static electricity? Also, I'm doing research for a book and I wanted to know...

Willi Luke asks

I am currently doing research on the e-bow, a guitar effect that calls upon an infinite feedback...

Suzanne Hamricks asks

I gave a child up for adoption in 1966. I have found someone who might be my child. She has type...

Gary Edwards from Carleton Place, Ontario, Canada asks

Why do carrots spark when cooked in a microwave? Peel 1/2 a carrot, dice it into small pieces, put...

Sue Smith from Salem, Oregon, USA asks

I am wondering about the difference between wood bats and aluminum alloy bats; I need a simple way...