2. Who believed that the earth was a flat rectangle with their country in the middle?
(a) Greeks.
(b) Egyptians.
(c) Persians.
(d) Babylonians.

3. What is the point on which the lever turns or moves?
(a) Resistance.
(b) Fulcrum.
(c) Center point.
(d) Force.

4. What great Greek teacher who lived more than one hundred years before Archimedes believed it was important to learn geometry?
(a) Socrates.
(b) Aristotle.
(c) Sappho.
(d) Plato.

5. How much would an educated man, like an architect, earn in Archimedes' day?
(a) 30 cents a day.
(b) 60 cents a day.
(c) 45 cents a day.
(d) 50 cents a day.

6. Which type of mathematics do architects needs to plan buildings?
(a) Applied Mathematics.
(b) Geometry.
(c) Calculus.
(d) Trigonometry.

7. Whom did Archimedes enjoy arguing with regarding whether pure reason was better than practical knowledge?
(a) Apollonius.
(b) King Hiero.
(c) Conon.
(d) Erastosthenes.

8. Which astronomers believed that the earth was inside a hollow iron sphere?
(a) Persian.
(b) Babylonia.
(c) Indian.
(d) Egyptian.

9. How many books were included in Euclid's "The Elements"?
(a) 7.
(b) 13.
(c) 5.
(d) 15.

10. What was the mathematical subject that Archimedes did not write about?
(a) Algebra.
(b) Calculus.
(c) Arithmetic.
(d) Geometry.

11. How many years later after Archimedes' work did another scientist add to the laws of nature that govern liquids at rest?
(a) 1800 years.
(b) 1200 years.
(c) 500 years.
(d) 750 years.

12. How many books were in the library at Alexandria?
(a) 750,000.
(b) 100,000.
(c) About a quarter of a million.
(d) Half a million.

13. After Archimedes spent days staring at the King's crown, who came to take him somewhere?
(a) The king's guard.
(b) His mother.
(c) His father.
(d) His slaves.

14. What was the name of the bugaboo that Archimedes' nurse would read about that frightened him when he was bad?
(a) Medea.
(b) Titan.
(c) Mormo.
(d) Simonides.

15. What was King Hiero's crown supposed to be made from?
(a) Tin.
(b) Silver.
(c) Gold.
(d) Copper.