- A: Brain - the main control center
- B: Spinal Cord - the main highway
- C: Nerves - the signal carriers
- Stimulus (input): Definition: A change in the environment that causes a reaction. Example: A loud noise.
- Response (output): Definition: The body's reaction to a stimulus. Example: Jumping at a loud noise.
- Reaction Time: Definition: The time it takes for an organism to respond to a stimulus.
- Hypothesis: If I test the reaction time of the senses of hearing, sight, and touch using a meter stick, then I predict the sense of touch will have the fastest reaction time.
Parent Tip: Review the logic above to help your child master the concept of stimulus and response worksheet.