Too basic Not enough info and please correct spelling.
Helpful...but full full FULL of misspelled words! 'dubble' for DOUBLE... Enzymes spelled incorrectly....as long as you are a good speller it's ok
Not bad Full of misspelled words. Not that detailed. But still helpful.
Sux not worth downloading.
Words misspelled Not good
Better to use animation if one can
*More Images that help you see whats happening
*Fixed Picture size