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Level A1 – BeginnerCEFR A1
1 min
56 words
- Scientists study a big pollution problem with chemicals.
- These chemicals are in water and soil.
- They stay in the environment for a very long time.
- Researchers use insect brains for testing.
- Locusts can smell the different chemicals.
- Each chemical makes a special brain pattern.
- Insects know the chemicals apart easily.
- This helps people find pollution faster.
Difficult words
- pollution — dirty or harmful materials in the environment
- chemical — a substance used or made by a science processchemicals
- environment — the natural world where people, animals, and plants live
- researcher — a person who studies something to learn new factsResearchers
- locust — a type of insect that can flyLocusts
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- What animals do you see outside every day?
- Why is clean water important for people?
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