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Level A1 – BeginnerCEFR A1
2 min
71 words
- Scientists found microfossils in very old rocks.
- The rocks come from northern Australia basins.
- Long ago the sea there was shallow and calm.
- The air then had very little oxygen.
- Fossils appear mostly on the seafloor and sediment.
- Early life sometimes needed oxygen to live.
- They lived on or inside the seafloor sediment.
- Living near other organisms can change cells over time.
- Scientists are now studying even older and deeper rocks.
Difficult words
- microfossil — Very small remains of ancient life.microfossils
- basin — Low area of land that holds rock or water.basins
- sediment — Loose rock, sand, or material on the ground.
- oxygen — Gas in the air needed by many living things.
- organism — A living thing, for example a plant or animal.organisms
- seafloor — The bottom surface under the sea water.
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever seen a fossil?
- Do you live near the sea?
- Would you like to study old rocks?
