How Our Muscles Know When to Move

1. Explain how you and your partner used only the sense of sight to catch the ruler.
2. Explain how you and your partner used only the sense of hearing to catch the ruler.
3. Explain how you and your partner used only the sense of touch to catch the ruler.
4. Was it more difficult to catch the ruler using one of the senses as compared to the other? Explain.
   
5. How could you use only the sense of smell to catch the ruler?
6. How could you use only the sense of taste to catch the ruler?
   
7. Explain how your senses, nerves, brain, and muscles in your fingers helped you catch the ruler for one of the senses explored. Use the Directing Your Muscles—The Nervous System chapter in your student reference book to help you.

1. My partner and I used the sense of sight by looking at the ruler. When we saw the other person let go, that was when we started to catch the ruler. I caught the ruler at 9 centimeters.
2. To do the sense of hearing, we closed our eyes and when one partner was about to drop the ruler, they would say,"3,2,1 Go!" and the other partner would catch the ruler. This worked out well, because