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Emma from the Internet asks

Why has Aluminium only recently been extracted from its ore?

Katie Harvill from Tuscaloosa asks

1)How does prenatal exposure to sex hormones influence behavior later in life? 2)What are gender...

Lisa Fondelius from Borås, Sweden asks

If pepsin digests proteins in the stomach, how do orally taken vaccines work?

Darren Mewha asks

Why are clouds flat on the bottom? Is it because the air is somehow denser on the level below the...

Johnny from Mississauga asks

In math class, my teacher has been frequently making references to what I've mentally labelled, as...

Kashif from Toronto asks

Why is propylene glycol not an alcohol? Same for glycerol. Why don't they evaporate and smell like...

KENNETH HICKFORD from LONDON ENGLAND asks

(1) What quantities of the earths atmosphere are lost to outer space over a given time? (2) how...

Eddie from Toronto asks

I know the basic details of how an ionization smoke detector works, where particles enter the...

Tim Sullivan asks

What exactly do meteorologists mean by the term "high pressure"? Do they mean the weight of the...

Lenny Rivera from New York asks

I am looking for general inofrmation about pangaea the supercontinent. If pangaea was a super...

christina from the Internet asks

Why are portable phones called cellular phones? How do they work?

Teresa G. Nelson from Alford asks

My father was exposed to massive radiation exposure before he fathered two out of three children....

Don Roscoe from Vancouver asks

Is there a machine that will measure the amount of oxygen that my lungs use in a breath? Or the...

Stef asks

How are minerals used in the production of Canadian coins?

david asks

Why are the time zones on maps rated as longitude & latitude in degrees and minutes?

nohjin asks

Where does the energy in freezing water come from? When water freezes, its volume increases so that...

Iain Hunter asks

What is the chemistry behind the method of cleaning silver where you place it on some aluminum foil...

Zach asks

How were the organelles in the cell named?

Saw Mui asks

Why does the Periodic Table of the Elements have two separate tables - one above and one below?

Leo from Montville, NJ asks

Where can I find the data to support that polyvinylpyrrolidone is safe for medical applications? ...

Christobell Bison from Sudbury asks

Can Ozone be created? And if so, is it possible to patch up the Earth's protective layer of Ozone...

Richard from Halifax, N.S. asks

How do you calculate water flow rate (volume/sec) based on water pressure and hole or pipe size?...

Lori Lancaster asks

Why does a saturated solution of calcium acetate gel when either ethanol or isopropanol is added to...

Gordon from Oakville, Ontario asks

I was studying for a science exam and stumbled across a chapter that covered energy. The chapter...

Kim Yonda from Winnipeg, Mb asks

I'm doing a project on mercury in water. I was wondering if and how you get mercury out of lakes. ...

Eli Sklar asks

What education do you need to become an embryologist?

Tony from Melbourne asks

In my recent science project, I tried discharging batterys in the freezer, fridge and room. The...

Ryan from Toronto asks

I am in grade 7 and attempting to do a Science Fair Project. I would like to know how I could test...

Karan Rustagi from Ontario asks

I heard that electricity can be transmitted in other forms than electron flow; like electromagnetic...

david caron from Toronto asks

What is the energy required to split H2O, (joules), and the energy released from combusting H2 +...

Thalia Parcs from Toronto asks

I have noticed in Toronto for the past two years, that the weather has been abnormally cloudy in...

Jason Kang from Thornhill asks

If a person was to experience continous pain, of moderate intensity, for a week, is there any...

Kaycie Nabeta asks

Can you explain where the "extra" ATP comes from in photosynthesis? As I understand it: 24 ATP...

Donald Plourde from East Mapleton asks

If I have two 6 volt lead acid Batteries with a 400 ampere hour charge in each one. And I wire the...

James McCarty from Frankfort, Kentucky asks

Evacuations of the earth's core through volcano eruptions, the pumping of oil, gas, etc., must...

Natasha Jackson from leaf river asks

How many skin cells would be in a square inch?

Rena from Thornhill asks

For school I need to know about natural convection and forced convection. I need to know the...

Andrew Hope from Gloucester asks

My son, James, and I cannot agree about the recoil of a gun. I believe that if a gun is fixed in a...

stephanie from windsor asks

Why can't spruce trees compete with maple trees in more southern forests? What advantages do the...

Hannah asks

I am very interested in getting into the field of Psychology and would appreciate basic and...