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Ocean Colour May Help Scientists Find Tiny Plastic

Some Pacific waters look brighter in blue and green.

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Environment news editorial illustration for Ocean Colour Offers a Possible Clue to Tiny Plastic Pollution

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of the . a of , in and .

of the . this .

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Source: Cheatham, Koestner and Hamre / Communications Earth & Environment; adapted under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/), 2026-11-05.

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Try 2 questions about this story, then explain one idea in your own words. Check the text whenever you need to.

In this lesson: Identify the colour change and the next research step.

Print a worksheet · Teacher guide & answers

Read and understand · 1/2Which colours became brighter in some water?

Read the answer and explanation

Blue and green. The satellite records showed brighter blue and green near the floating rubbish.

Clue: Scientists studied satellite records of the Pacific Ocean. Near a large area of floating rubbish, some water became brighter in blue and green.

Read and understand · 2/2What do the scientists still need to check?

Read the answer and explanation

The water itself. The final paragraph says the scientists still need to check the water itself.

Clue: The study came out on November 5. Scientists still need to check the water itself. Colour alone does not prove that plastic caused the change.

Grammar in this story: May for a possible explanation

Tiny pieces of plastic may help explain the change.

May presents plastic as a possible explanation. It does not say the cause is certain.

Your turn

Describe the colour change and give one possible explanation.

See one possible answer

Some water became brighter in blue and green. Tiny pieces of plastic may help explain this change.

Your answer can be different. Give a reason and use your own words.

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