Presenting measurement values together with some educated guess on accuracy or precision is scientific standard. It is very important to any good scientist, so much so that it is basically my religion. Delta (Δ) is my god! Those statisticians who serve sigma (σ) and teach the primacy of it do not understand that delta is the larger one after all (sorry - the pun here is strictly for the geeks among you).
A video posted on A Blog Around the Clock a few days ago discusses the mechanisms behind hydrogen bonding. The first half of the video is visually basic -- simple diagrams to illustrate the points in the narrator's lesson -- and includes things like different colors for different atoms, and star shapes that appear where a bond forms.
End-stage renal disease, or chronic kidney failure, affects more than 500,000 people per year in the United States alone and is only fully treated with a kidney transplant. 

Yet there were only 17,000 donated kidneys for transplants last year and the number of patients on the transplant waiting list currently exceeds 85,000, according to the Organ Procurement and Transplant Network.