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Green Ninja


3rd, 4th, 5th, 6th, 7th, 8th


Science, Biology

Resource Types

  • Videos, 1 minute, 50 seconds, CC, Subtitles
  • Activity - Classroom

Regional Focus


Compost Field Trip

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  • This short, animated video follows Green Ninja and his friends as he investigates why the school compost bin smells bad.
  • Students will learn about the elements of successful compost, including the proper ingredients, the need for moisture, and the importance of mixing.
Teaching Tips


  • This video is upbeat and entertaining, with playful graphics that will keep students engaged.
  • This resource includes beneficial classroom questions and plentiful extension ideas.

Additional Prerequisites

  • This video assumes that students know what compost is, so be sure students understand this idea before watching and consider using the "Frame" questions provided for additional pre-viewing preparation.
  • The Garbology video that is suggested as a background-building game may not be working depending on updates to Adobe, so preview this link before using.


  • It may be helpful to view this short video more than once so that students can keep up with the fast-paced information that is presented.
  • Before a second viewing of the video, have students use the "Focus" questions to give purpose to their learning.
  • Put students in groups or with partners after viewing the video to discuss the "Follow-up" questions.
  • Language arts or science classes could use the writing prompts provided while conducting short research projects on chemical and physical changes or greenhouse gases and compost.
  • For students who may need additional support, consider using this introductory lesson on composting which contains a relevant lesson plan and worksheet.
  • As an extension activity, consider using the directions in this guide to create a compost bin or use these compost bin directions.
Scientist Notes
This resource provides teachers with a guide to teach students about reducing waste and composting. The resources provided include framing questions to gauge students understanding of carbon footprints prior to watching a video ~ 3.5 minutes long. The video centers around a group of friends, along with the green ninja, investigating successful composting. Focus questions, along with follow-up questions and optional extensions are provided. This video, along with the supporting material, is well sourced and would make a great addition to a classroom discussing reducing waste and what effects waste reduction could have on the planet.

This resource addresses the listed standards. To fully meet standards, search for more related resources.

  • Science
    • ESS3: Earth and Human Activity
      • 5-ESS3-1. Obtain and combine information about ways individual communities use science ideas to protect the Earth’s resources and environment.
    • LS2: Ecosystems: Interactions, Energy, and Dynamics
      • 5-LS2-1. Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment.
  • English Language Arts
    • Speaking & Listening (K-12)
      • SL.ES.3.3 Ask and answer questions about information from a speaker, offering appropriate elaboration and detail.
      • SL.ES.7.3 Delineate a speaker's argument and specific claims, evaluating the soundness of the reasoning and the relevance and sufficiency of the evidence.
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