Since this is the 21st century and geocaching requires the use of some extremely sophisticated electronics, a network of satellites and, not least, a global network of computers (i.e., the world wide web), it doesn't seem too unreasonable to expect you to be able to pass a relatively simple science quiz in order to find this cache. This is an open book (or open web) exam so, if you're feeling rusty, you'll be graded as much on your ability to research and reason as to remember. Fair enough?
Now, on to the questions:
Physics
A = the upper limit (theoretical) for the mass (eV) of an electron neutrino, as an integer (round down)
B = average number of neutrons in a hydrogen atom (integer value)
C = number of states of matter (hint: list them)
Math
D = 3!
E = 32
Biology
F = the order of symmetry of an echinoderm (asteroidea, for example)
Chemistry
G = atomic number of the second lightest of the alkali metals
Anatomy
H = number of appendices found in the normal human body
Astronomy
I = number of planets in our (local) solar system
J = days between the lunar 1st quarter and the full moon
And the answer is:
The cache you seek is a micro hidden at N 47º FA.AGI' / W 122º CH.JHG'
Note: an extraction tool might be useful ... even it it's only a piece of wire.
You can check your answers for this puzzle on Geochecker.com.
For a complete list of puzzle caches which have GeoChecker confirmation and to see the hit/miss result counts for each, go here.