1 - The pH scale measures...
2 - What is the greatest number of electrons that can fit into the first electron shell (also called an energy level)?
3 - What is the biggest asteroid in the asteroid belt between the orbits of Mars and Jupiter?
4 - Who is credited with the wave theory of light?
5 - What is the other giant spiral galaxy of the Local Group, along with the Milky Way?
6 - Who discovered and capitalized alternating current?
7 - Which of the following is not a formula for energy?
8 - Which Space mission was described by James Lovell and Neil Armstrong as 'The most significant in the history of US spaceflight'?
9 - What was the diametre of the biggest Kamtchatka crab found?
10 - Which of these is an example of an extremophile?
11 - What is the name of the largest known cellestial body belonging to the Solar system that lies beyond the orbit of Pluto?
12 - Who was the first to propose the uncertainty principle, which is vital to quantum mechanics?
13 - What is the collective name for the asteroids that are co-orbital with Jupiter?
14 - How many planets can be seen with normal 20/20 vision, unaided by telescopes, and unhindered by light polution?
15 - What model of rocket is shown below?
16 - What is the process by which a eukaryotic cell divides into two new cells?
17 - Which computer language was originally not interpreted?
18 - Which of these aircraft designers was responsible for the Hawker Hurricane fighter plane?
19 - What is one difference between RNA and DNA?
20 - How was the NASA probe Climate Orbiter lost in 1999?