Why Do We Have Fingerprints? | A2 ESL Science Reading Passage

Use this A2-B1 ESL science reading passage to learn why people have fingerprints. It includes key vocabulary, reading comprehension questions, and answers for English learners.

Fingerprints are tiny line patterns on the tips of our fingers.

Reading Level

A2-B1

Word Count

238 words

Reading Passage

Look closely at the tips of your fingers. You can see many small lines. These lines make your fingerprint.

Fingerprints are not just marks on the skin. They help your fingers touch and hold things. The tiny lines make the skin less smooth. This can help you grip objects like a pencil, a cup, or a phone.

Fingerprints may also help us feel small details. When your finger moves across a surface, the lines on your skin help send information to your nerves. This helps your brain understand what you are touching.

Every person has a different fingerprint pattern. Some patterns look like loops. Some look like waves or circles. Even twins do not have exactly the same fingerprints.

This makes fingerprints unique. A person's fingerprints can be used to help identify them. Fingerprints can also leave marks on glass, paper, or metal because our skin has natural oils.

Fingerprints begin to form before a baby is born. They stay mostly the same during a person's life. Cuts can change the skin for a short time, but the main pattern often comes back.

Fingerprints are small, but they are useful. They help us hold things, feel the world, and show that every person is a little different.

Fingerprints help us grip objects and feel surfaces.

Key Vocabulary

Word	Meaning	Example
fingerprint	the pattern of lines on the skin of a finger	My fingerprint has many small lines.
pattern	a repeated shape or design	Each finger has a special pattern.
grip	to hold something firmly	Fingerprints help us grip a cup.
surface	the outside or top part of something	The table has a smooth surface.
unique	different from all others	Your fingerprint is unique.

Reading Comprehension Questions

1. Where can you see fingerprints?
2. How can fingerprints help us hold things?
3. What do fingerprints help the brain understand?
4. Do twins have exactly the same fingerprints?
5. When do fingerprints begin to form?

Answers

1. You can see fingerprints on the tips of your fingers.
2. The tiny lines make the skin less smooth and help us grip.
3. They help the brain understand what we are touching.
4. No, twins do not have exactly the same fingerprints.
5. They begin to form before a baby is born.

Short Summary

Fingerprints are tiny line patterns on our fingers. They help us grip, feel surfaces, and identify each person.

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