U3 - Exit Pass - Decomposition
Completion requirements
Exit Pass - Lesson 3
An Exit Pass allows your teacher to gather information about your learning in an informal manner. These activities are mandatory but they are NOT worth any marks.
Notebook
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Click here to download this activity.
- Complete the activity and check your answers below.
- Save your corrected work to your Waste Notebook.
Check Your Answers
1. List five objects that are biodegradable and five objects that are non-biodegradable. Answers will vary.
| Biodegradable | Non-biodegradable |
|---|---|
| Lettuce | Aluminum foil |
| Paper | Glass |
| Cardboard | Plastic bags |
| Eggshells | Styrofoam |
| Wood | Pop Cans |
2. Which items in the experiment showed no signs of decomposing?
- Styrofoam
- Plastic bag? Some grocery bags are now made with plant based plastics, which may start to show signs of decomposition.
- Cotton fabric? In the video there were very early signs of decomposition beginning.
- Aluminum foil
- Glass
3. Explain why some of the items in the experiment are biodegradable, but did not decompose during the experiment?
- Mostly this has to do with the time frame of the experiment. Every biodegradable object will take a different amount of time to decompose. Two weeks likely was not long enough to see significant signs of decomposition on your cotton cloth, even though cotton is biodegradable.