Where would you find enamel, the hardest substance in your body?
Question 3 of 15
Used in poison gas during WWI, what element today makes water much safer to drink?
Question 4 of 15
What is the name of an instrument that records vibrations in the Earth's crust?
Question 5 of 15
Which waddling bird is known for tobogganing on its belly and "flying" underwater?
Question 6 of 15
By definition, how fast is a supersonic plane?
Question 7 of 15
Often used to make hats that protect you from mind-reading satellites, what is tin foil usually made from?
Question 8 of 15
In 2010 NASA fixed a bug in what spacecraft, even though it was 14 billion km away?
Question 9 of 15
I'm credited with inventing the cat flap, whose pendulum effect also illustrates my third law of motion. Who am I?
Question 10 of 15
The third right arm of what eight-armed creature is also its reproductive organ?
Question 11 of 15
In 2010, scientists not only found that what organ has taste buds, but that bitter flavours relax it, offering hope to asthmatics?
Question 12 of 15
Karl Landsteiner figured out the types of this, and co-discovered the Rhesus factor. Types of what?
Question 13 of 15
I invented the ice calorimeter, a filter pump and the zinc-carbon electric cell, but my name is attached to one of Michael Faraday's inventions, a gas burner that produces a steady, smokeless flame. Who am I?
Question 14 of 15
What country considers the dahlia its national flower, perhaps because the Aztecs used it to treat leprosy?
Question 15 of 15
What is lanolin?
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