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| Answers: 1. When the crumpled up paper hit the transparent sheet, I blinked and I'm pretty sure I smiled and laughed at how fun this experiment was! My body also flinched when the noise of the ball hit the sheet. It is so cool that so much can happen in a matter of seconds. 2. The reflex would protect my eyes because it can keep things out of your eyes. If this reflex didn't exist, chemicals and bad substances might get into our eyes! The eyelashes help because they can feel things that are heading towards the eyes. |
Questions: 1. Can you feel it when your pupils dilate? 2. Do you have any control over your pupils when they dilate? 3. What do we call this when a reflex happens without our control? 4. Why do our pupils get bigger in the dark and smaller in the light? 5. How does this reflex protect our eyes? | Answers: 1. No, I could not feel my pupils dilate, but since the light was off, I saw things in a darker manner. The eyes dilated, which means they got bigger, to take in more light. 2. No you don't because when it gets dark, your eyes automatically dilate. The only way you can sort of control it is turning the lights off. 3. A reflex that we can't control is called an involuntary reflex, like an involuntary muscle. 4. They get bigger in the dark because we need to absorb more light to see in the dark, and in the light, we don't need as much light because it is already there. 5. This reflex protects our eyes because if our pupils were really big in the light, we might go blind because we would have to much light in our eyes. If our eyes were small in the dark we, it would be the exact opposite. We wouldn't be able to see very well because it would be so dark. This reflex balances our eyes and helps us live! |
Sense of Sight | Sense of Hearing |
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