1) What are the materials we can recycle? 2) What is organic trash? 3) What is biodegradable trash? 4) What is non biodegradable trash? 5) What (objects) do we put in a compositing box? 6) What is food chain? 7) Why is the decomposition part of the food chain? 8) What are decomposers? Why are they important? 9) What are the perfect conditions for the decomposition? 10) Name different decomposers. 11) Bacteria is a decomposer. True or false? 12) Paper is a type of organic trash. True or false? 13) Metal is biodegradable. True or false? 14) Fruits are non biodegradable. True or false? 15) Worms are necessary in the decomposition process. True or false? 16) Give one example of food chain. 17) What do animals and plants tranfer in the food chain? 18) Paper is biodegradable but it is not organic. True or false? 19) Is it possible to recycle wood? 20) Is it possible to recycle organic food?

Science - Recycling and composting

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