1. When radiation was first discovered, it was sometimes added to:
(a) Gasoline and alcohol.
(b) Drinking water.
(c) Toothpastes and laxatives.
(d) Stews and casseroles.

2. About how many stars are visible to the naked eye from Earth?
(a) 9,600.
(b) 1,200.
(c) 500.
(d) 6,000.

3. What are so small that the dot on the letter "i" could hold 5 billion of them?
(a) Viruses.
(b) Quarks.
(c) Protons.
(d) Bacteria.

4. Richard Owen coined the term paleontology as the study of prehistoric life forms and called the giant animals dinosaurian, meaning:
(a) Terrible lizard.
(b) Ancient animal.
(c) Enormous creature.
(d) Large reptile.

5. Today, scientists know that radiation in high doses is:
(a) Tolerable.
(b) Safe.
(c) Toxic.
(d) Healthy.

Short Answer Questions

1. After noticing an unusual phenomenon with uranium salts and a photographic plate, Henri Becquerel asked one of his graduate students to investigate the matter. Who was this student?

2. What did the French Compte de Buffon claim about the New World (the Americas) compared to the known Old World?

3. James Hutton was a geologist who wondered why:

4. When was the Big Bang Theory first proposed?

5. Between 1980 and 2003, how many supernovas did the Reverend Robert Evans of Australia discover using a simple backyard telescope?

(see the answer key)

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