3Pre-IntermediateKidsAges 9-11Science

Super Old Rocks Show Life on Earth Long Ago!

Scientists found signs of tiny living things in a very old rock in India. The rock is 3.5 billion years old! This helps us learn how life started on our planet.

1 min readLevel 3August 22, 2026

By Flalingo Editorial Team

Vocabulary

Study these words before reading the article. Click the audio button to hear pronunciation.

discovery

/dɪˈskʌvəri/

noun

Finding something new or important for the first time

“The discovery of the old rock was very exciting.”

tiny

/ˈtaɪni/

adjective

Very, very small

“The tiny animals were too small to see.”

layer

/ˈleɪər/

noun

A flat piece of something that covers or is between other things

“The cake had a layer of chocolate on top.”

crystal

/ˈkrɪstəl/

noun

A hard, clear piece of rock or mineral with a special shape

“She found a beautiful crystal in the cave.”

ancient

/ˈeɪnʃənt/

adjective

Very, very old, from a long time ago

“The ancient tree was over 500 years old.”

clue

/kluː/

noun

Something that helps you find an answer or solve a problem

“The footprint was a clue about the animal.”

Listen to Article

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Article

Click on any underlined word to see its definition. Highlighted words are from the vocabulary section.

Scientists made an amazing discovery in India! They found a very old rock. It is about 3.5 billion years old. The rock has signs of tiny living things. These living things were too small to see.

The tiny things lived together in groups. They made thin layers inside the rock. Scientists used special crystals to find the age. The crystals came from old volcanoes. This was the first time they could do this!

This discovery is very exciting for scientists. It helps us understand early life on Earth. Life started a very long time ago. Our planet has an amazing history. Scientists will keep looking for more clues!

Comprehension Quiz

Test your understanding of the article with these multiple-choice questions.

1
Where did scientists find the very old rock?
2
How old is the rock?
3
What did the tiny living things make inside the rock?
4
What helped scientists find the age of the rock?

Discussion

Answer these comprehension questions about the article.

1
Where did scientists find the old rock?
2
How old is the rock that scientists found?
3
What did the tiny living things make inside the rock?
4
What did scientists use to find the age of the rock?
5
Why is this discovery exciting for scientists?

Further Discussion

Share your opinions on these open-ended questions.

1
What would you do if you found a very old rock?
2
Can you think of other things that are very old?
3
If you were a scientist, what would you like to discover?
4
What is your favorite thing about our planet Earth?
5
If you could travel back in time, where would you go?

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