Room Temp Water Investigation

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Temperature sensation and sensory adaption (warm or cold sensation by warm spots and cold spots of the skin).

My Topic of interest: The nervous system and temperature.

The problem I'm going to be investigating: When you move your hand from the cold and hot water to the room temp water, why does your hand from the cold water feel hot and your hand from the hot water feel cold? Will having lemon juice in your mouth (Your taste hair stimulates, then they send nerve impulses to your brain.) through the entire experiment and then just when you put your hands into the room temp water, change the way your hands feel after putting them in the room temp water?

Background research: Scientist study temperature sensation and one they accomplished …show more content…
Ice water.
Hot water.
Room temp water.
My mom.
Me.

Independent variable: Age.

Dependent variable:

Moving your hand from ice-cold water and hot water to room temperature and then having your cold hand feel hot, and your hot hand feels cold.

Controlled variable: Temperature.

Sample size.

Steps (make sure you're comfortable with the temp of the ice water and hot water and also make sure you hold the lemon in your mouth do not swallow).

Have your ice water hot water and room temp water ready along with a lemon or lemon juice.

Put the lemon in your mouth Put your left hand in the ice water and your right hand into hot water, stay there for 30-60 seconds.

Quickly put both of your hands into the room temp water you should still have the lemon in your mouth.

Describe what you feel.

Have your ice water hot water and room temp water ready along with a lemon or lemon juice.

Put your left hand into the ice water and your right hand into hot water, stay there for 30-60 secs.

Quickly put both of your hands into the room temp water and at the same time have someone put a lemon or lemon juice in your mouth.

Describe what you …show more content…
The lemons didn't change the temperature your hands feel when you put them in the room temperature water, I don't know why.

I was thinking both my experiment and the lemons had sensory receptors, I assumed the lemons would change how your hands should feel when putting them into the room temp water.

I think it was because the sensory receptors that were involved in this were different from the sensory receptor that was involved when your tongue touches a lemon. These sensory receptors for these two things may have similarities, but they won't change a process of one another because of that.

What I learned when doing research:

The brain that was in action or responsible during this experiment was the somatosensory cortex which processes all our sensory information and it's in the parietal lobe.

Our hands and our fingertips help us to collect information about temperature. There are many nerve endings in your fingertips which collect information and send signals to the brain.

Your hand that you placed in the ice water activates the cold thermoreceptors (Detect temperature changes.) which then causes an electrical pulse which goes to the sensory nerve in your fingertips and then to your
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