Teacher notes & answers
How can plastic travel from a street to the sea?
Assign the pupil link below. This teacher page contains answers and is a separate, publicly accessible resource. KEO does not collect pupil answers or send grades to Classroom.
Learning objective
Trace a route for litter and suggest a way to prevent waste.
Suggested lesson plan
- Read and notice — 5 minutes. Read the summary together and explain new words.
- Discuss — 5 minutes. Ask pupils to explain the three key ideas in their own words.
- Try it — 5 minutes. Complete the paper activity.
- Check understanding — 5 minutes. Use the three questions and discuss reasons.
Support and extension
Read aloud, pair readers, or accept spoken and drawn responses. For an extension, ask pupils to explain one limitation of the model or drawing. Suggested ages are guidance, not a measured reading-level assessment.
Teacher guidance
Recycling rules are local. Use this checked summary rather than old global statistics in the archive article.
Answers and reasons
1. How could a wrapper reach a river?
Wind or rain can carry it into a connected drain or stream.
2. Has plastic disappeared when it breaks into tiny pieces?
No. The pieces are still plastic, including microplastics.
3. How could waste be prevented before recycling is needed?
Accept avoiding unnecessary packaging or reusing a suitable container.
Ready-to-copy assignment instructions
Read “How can plastic travel from a street to the sea?”. Answer the three questions and complete the paper activity. Use your teacher’s instructions to hand in your work in Google Classroom or in class. You do not need to register with Kids.Earth.Org.
https://kids.earth.org/schools/teaching-resources/plastic-journey/
Sources and credits
Lesson summary and activity prepared for Kids.Earth.Org. Factual sources checked 5 November 2026.
Related archive article: What is Plastic Pollution? — Jenny Tsui, 18 April 2022. The checked lesson summary stands alone; archive wording may differ.