Level A1 – BeginnerCEFR A1
2 min
78 words
- Long ago, the moon formed after a big collision.
- It happened about 4.5 billion years ago.
- A large object hit the young Earth and broke.
- Pieces of rock flew into space from Earth.
- Those pieces came together later to make the moon.
- Scientists studied rocks from Earth and the moon.
- They used isotopes like small chemical fingerprints.
- Their work shows the moon keeps Earth's tilt steady.
- This idea helps explain Earth’s climate.
- Researchers use experiments and computer models.
Difficult words
- collision — When two objects hit each other.
- isotope — A small chemical variant of an element.isotopes
- tilt — The angle a planet leans.
- climate — The usual weather in a place.
- model — A simple computer or physical test.models
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Discussion questions
- Have you seen the moon?
- Do you find space and planets interesting?
- Do you think the moon helps Earth?
