Human Biology
Can the human body survive longer without food or without water?
Food
What is the lightest element?
How old is the universe?
13.8 billion years old
Does sound travel faster in water or air?
Water
Which type of rock is obsidian: igneous, sedimentary or metamorphic?
Igneous
Which is the most common element in the human body: carbon, hydrogen, oxygen, or nitrogen?
Oxygen
What is the only letter that doesn't appear on the periodic table?
J
Which is the hottest planet in our solar system?
Venus (460 degrees surface temp.)
When you mix all the other colours of light together, what colour do you get?
White
What is the hardest known substance?
Diamond
What is the largest organ in the human body?
The skin
Which is denser water or ice?
Water
What is at the centre of the Milky Way galaxy?
A black hole
What is the unit of measurement for electrical resistance?
Ohm
What is the scale used to measure the magnitude of earthquakes?
The Richter scale
What is the name of the pigment responsible for giving skin and hair colour?
Melanin
Our bodies need iron! Where in the human body is most of the iron found?
Our blood
Which constellation represents a hunter and weapons?
Orion
Who is known as the father of modern physics for his theory of relativity?
What is limestone formed by?
Crushed shells or coral
A nephrologist specialises in the treatment of which organ?
The kidneys
What is the common name of the colourless, highly pungent gas whose chemical formula is NH3?
Ammonia
Which two planets in our solar system do not have moons?
Mercury and Venus
What is the term for the tendency of an object to resist changes in its state of motion?
What frosty soil layer is like the freezer section of the Earth — frozen solid year-round?
Permafrost