The Science Behind Hot Sauce
A table holds a pile of chili peppers and several small, closed bottles of sauce. The peppers come in different shapes and colors, and the sauces range from bright red to green. They may all add flavor to food, but they do not all taste alike or cause the same amount of heat.
The heat in chili peppers comes mainly from a substance called capsaicin. It is found especially in the pale inner tissue that holds the seeds. Seeds can pick up capsaicin from touching that tissue, but they do not produce it themselves. Different kinds of peppers contain different amounts, and even peppers of the same kind can vary.
When capsaicin reaches the mouth, it activates certain nerve endings. These nerves have tiny receptors that also respond to high temperatures. The nerves send signals to the brain, and the brain interprets those signals as a burning sensation. That is why a sauce can feel hot even when it has been sitting at room temperature.
- substance:
- A particular kind of material.
- tissue:
- A group of cells that forms part of a living thing.
- activates:
- Makes something start working or responding.
- interprets:
- Understands or gives meaning to something.
- texture:
- The way something feels or how thick or smooth it is.
- originated:
- First began or came from a place.
- distinctive:
- Having qualities that make something noticeably different.
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Main Idea
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Preview questions from this passageShowHide
- 1What is the main idea of the passage, and which two details support it?
- 2Why can hot sauce feel hot even when it is at room temperature?
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About this informational passage for Upper Elementary
“The Science Behind Hot Sauce” is a informational reading passage about Hot Sauce, written for Upper Elementary. It takes about 3 minutes to read (456 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.