Eco-bottle refers to an artificially simulated micro-ecosystem formed by putting a small amount of plants, animals and other abiotic substances that feed on these plants into a closed light-mouth bottle. In other words, put some small animals and plants (providing oxygen) in a glass bottle, be self-sufficient, do not add any food, do not open the bottle, and let all the creatures in the bottle survive.

Environmental protection bottle is an interesting, energetic and very practical tool in teaching activities. Because most students like to raise and watch animals and other creatures in ecological bottles, this teaching method can not only increase knowledge and promote students' exploration of knowledge, but also increase students' understanding of knowledge and bring beautiful enjoyment.