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Lisa Fondelius from Borås, Sweden asks

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

Lia Cassanego asks

I am experimenting with microwave reboil caused when you microwave coffee or water and add sugar,...

Steve Appleby asks

What catalysts are needed to break down plastic containers, such as yogurt cups?

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...

Johnny from Mississauga asks

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

Tim Sullivan asks

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

Katie Harvill from Tuscaloosa asks

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

nohjin asks

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

Eli Sklar asks

What education do you need to become an embryologist?

Zach asks

How were the organelles in the cell named?

Darren Mewha asks

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

david asks

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

christina from the Internet asks

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

Eddie from Toronto asks

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

Saw Mui asks

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

Tony from Melbourne asks

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

Gerald Taylor from El Dorado, Arkansas asks

I was wanting to make my own acid stain for concrete. I have muriatic acid and heavy metals...

Kashif from Toronto asks

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

Gordon from Oakville, Ontario asks

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

Leo from Montville, NJ asks

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

Lenny Rivera from New York asks

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

Karan Rustagi from Ontario asks

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

Iain Hunter asks

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

Jason Kang from Thornhill asks

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

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. ...

KENNETH HICKFORD from LONDON ENGLAND asks

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

Kaycie Nabeta asks

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

Teresa G. Nelson from Alford asks

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

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...

James McCarty from Frankfort, Kentucky asks

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

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...

Thalia Parcs from Toronto asks

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

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...

David from Kitchener, Ontario, Canada asks

My question may be hard to answer. I have wanted to be a scientist since I knew what science was,...

kristi from hurricane w.v asks

If a person or infant is going to get freckles, at what point or age do they appear?

Ian Burke asks

What do you think of a Gas/Electric hybrid car? I made a power generation device made up of 8 a.c....

Julie asks

What is the chemical make-up of pear, banana and apple peels?

Rena from Thornhill asks

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

kirst from the Internet asks

What everyday appliance uses electrostatics?

Charl Mai from Vancouver, Canada asks

Do herbal medicines interfere with the effectiveness of prescription medicines? If so, how does...