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Level A1 – BeginnerCEFR A1
2 min
78 words
- Scientists study Uranus and Neptune with new models.
- The planets used to be called ice giants.
- New research says this label is too simple.
- The team made a new simulation process.
- They start with a random density for the inside.
- Then they match the model to gravity data.
- Results show the inside may be rock-rich.
- Or the inside may be water-rich instead.
- Models also explain the strange magnetic fields.
- Scientists say we need spacecraft missions now.
Difficult words
- model — a plan that shows how something worksmodels
- simulation — a computer test that copies real events
- density — how much mass is in a volume
- gravity — the force that pulls things down or together
- magnetic field — an invisible area that affects magnets and metalmagnetic fields
- spacecraft — a vehicle made to travel in space
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Which planet is more interesting to you, Uranus or Neptune?
- Would you like to go on a spacecraft mission?
- Have you heard about magnetic fields before?
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