📖+10 XP
🎧+10 XP
✅+15 XP
Level A1 – BeginnerCEFR A1
2 min
73 words
- Scientists study how the Earth formed from space rocks.
- They examine many different types of meteorites from space.
- Meteorites come from inner and outer parts of the system.
- A team at ETH Zurich re‑examined isotope data carefully.
- Isotopes are atoms of the same element that differ.
- The researchers used many isotope systems and methods.
- Their results show Earth came only from inner material.
- Jupiter likely acted as a barrier to outer rocks.
Difficult words
- meteorite — a rock from space that falls to EarthMeteorites
- isotope — atoms of one element with different massIsotopes, isotope systems
- scientist — a person who studies scienceScientists
- researcher — a person who studies and checks factsresearchers
- barrier — something that blocks movement or passage
- material — substance or matter used to make things
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Would you like to be a scientist?
- Have you ever seen a rock from space?
- Can a big planet block rocks from space?
Related articles
26 Apr 2026
14 Jun 2024
28 Nov 2025
Algorithms show how catalysts turn propane into propylene
Researchers at the University of Rochester developed algorithms that explain how nanoscale catalysts convert propane to propylene. The work reveals atomic features of metallic and oxide phases and could help improve industrial production methods.
27 Oct 2025
27 May 2026
Eclipse project increased people’s connection to science
A public participatory science project linked to the 2024 total solar eclipse showed that witnessing awe-inspiring events can raise people’s sense of science identity and belonging. Volunteers recorded animal behaviour and completed surveys.