Ventura County Science Fair Ideas by Category - Zoology Possible projects involving animals. By classifying blood types, you can find out what type of blood is most common among your students, and whether this information is similar to national statistics. From Newton's Apple. Smell Test your classmates' senses of taste and smell to find out which sends the clearest message to the brain. From Newton's Apple.
Involuntary reflexes are very fast, traveling in milliseconds.
The nerve impulses in the neurons that control these reflexes travel an express route. Our conscious muscular response to a stimulus takes a much longer route. See just how fast your brain and nerves respond to stimuli in this experiment. From Newton's Apple. As an object approaches, the human eye's lens flexes to focus on it.