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  • See-Through Compost Kit

See-Through Compost Kit

Quick Overview

Three aerated compartments enable kids to view the entire decomposition process clearly and make side-by-side comparisons among different materials. A great way to teach decomposition, composting, life cycles, and environmental education.


Availability: In stock


Different materials have different rates of decomposition, but up until now it has been difficult to observe. With the See-Through Compost Container, you can witness the decomposition and decay of different items side-by-side. The results may surprise you! You can try comparing a banana with a piece of paper, or check to see if an apple will decompose faster than an orange. The in-depth teacher's guide will supply you with plenty of ideas, a time chart, and science fair project possibilities.
The See-Through Compost Container's three compartment design allows budding ecologists to make simultaneous observations of three separate decomposition scenarios. Each compartment of the See-Through Compost Container has a stationary magnifying window to observe the decomposition process more closely. Also included are three thermometers to compare the temperature of the decaying materials. Survey the three compartments and their different decomposing substances as their rate of decay and temperature vary from day to day. Recommended for children ages 5 and up.

What's Included?

  • One 12"x8"x4" See-Through Compost Container
    • Each of three compartments measures 8"x4"x4"
  • One plastic, grass themed container cover
  • One plastic, dirt themed container stand
  • Three 9" thermometers
  • One teacher's guide with science fair ideas

How Does It Work?

The See-Through Compost Container uses its three watertight compartments to allow young scientists to experiment with separate, side-by-side decomposition scenarios.

What Does It Teach?

The unique three compartment set-up of the See-Through Compost Container offers a one-of-a-kind apparatus for comparing decomposing materials. Students and teachers alike will marvel at their ability to witness the entire decomposition process and compare different materials during simultaneous decay.

Science Fair Project Connections:

The See-Through Compost Container is a pretty cool demonstration for examining the science behind decomposition! However, a successful science fair project must be an experiment, not a demo. How do you know if a project is an experiment? Answer "Yes" to these questions and you’re on the right track.

  • Do you have a question that needs an answer?
  • Do you have a prediction what the answer might be?
  • Do you have real tests to run to find the real answer? 
  • Do you have something to change in the tests to make comparisons?
  • Do you know how to organize the data so others can test your work? 


To develop a science fair project, you need to identify and test variables. A variable is something you change that might alter the results of the experiment. A valid test keeps everything else the same except the single variable being tested. The See Through Compost Container offers the ability to conduct three different experiments at once, making it perfect for testing a single variable. Here are a few variable ideas to use: 


  • Soil changes:  Use a single type of soil and test different additives to discover which might help or hinder the decomposition process by testing three of them on the same material.  
  • Water amounts:  Water is vital to decomposition but the right amount at the right time is very important to the end result.
  • Decomposition rates:  Stirring the compost pile can speed up the process but, among other things, you need to know how often to stir it for the best results.

Come up with your own variable to test and go claim that First Place prize!


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  1. OMG!!! review by Kathy M. on 5/18/2013

    This is the greatest thing I've ever bought for my classroom. It gives the kids an up close eye view of decomposing. Every Elementary teacher should have one.

  2. fun review by jenny on 4/25/2013

    This project was very fun,i am using this kit for my science fair project.i am using an apple,newspaper,and a Styrofoam cup i recommended this kit to everyone!

  3. Excellent Composting Demo review by Jennifer Boeder on 3/8/2013

    I purchased this kit for an Earth Day booth promoting composting. I filled the sections with soil, placing two banana peels in each section at a height that lined up with the magnifiers. I repeated this at different time intervals: 14 days, 7 days and 2 days, and labeled them. It drew a big crowd! Children and adults liked seeing the decomposition process. The "day 2" section was obviously banana peels, but by day 14, they were almost completely decomposed. I did not use the thermometers. They are glass, and I was concerned with them breaking, especially with so many children touching the display.

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