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550 : 2 = ?

• 225

• 175

• 275

• 325

The atomic bomb “Little Boy” detonated in Hiroshima on Aug. 6th was made with which radioactive chemical element?

• uranium

• polonium

• plutonium

• thorium

DNA codes for proteins, which are the building blocks of organisms. What is the most abundant protein in the human body?

• Tubulin

• Albumin

• Keratin

• Collagen

When did the dinosaurs went extinct?

• at the end of the Paleogene period

• at the end of the Cretaceous Period

• at the end of the Jurassic period

• at the end of the Triassic period

What is the name of the Italian painter who created this artwork?

• Vincent van Gogh

• Pablo Picasso

• Michelangelo

• Leonardo da Vinci

Which city is the most populated in the world?

• Manila

• Tokyo

• Beijing

• Paris

Which of these planets has the most moons (natural satellites) : Mercury, Venus, Earth, Mars?

• Mercury

• Earth

• Mars

• Venus

All of the following elements are liquids around room temperature except which one?

• Fluorine

• Bromine

• Gallium

• Mercury