1. What's a computerized axial tomography scan, better known as?

2. What creatures attack an average of three million people per year?

3. What will not be back to entice astronomers until the year 2061?

A. Halley's Comet
B. Asteroid Shower
C. Hale Bopp Comet
D. Polaris Comet

4. What colorless and odorless substance is the main constituent of natural gas?

A. Hydrogen
B. Methane
C. Nitrogen
D. Oxygen

5. What caused half of all deaths from natural disasters from 1945 to 1986?

A. Tornadoes
B. Hurricanes
C. Floods
D. Earthquakes

6. Which elementary particle is the exchange particle for the gravitational force?

(Use first 6 letters from one of the words in the question and add "on")

7. What is the term for an unsaturated hydrocarbon with at least one double carbon-carbon bond?

A. alkaloid
B. alkane
C. alkene
D. alkyne

8. What blood type is most common in Amerinds, the largest native group in the Americans?

A. Type AB
B. Type A+
C. Type B-
D. Type O

9. For which type of scientist would a Hertzsprung-Russell diagram be of use?

A. Geologist
B. Zoologist
C. Astronomer
D. Botanist

10. Who first said "For every action there is an equal and opposite reaction"?