Due to the discovery of abundant domestic natural gas resources and the decrease of minable crude petroleum oil, the technology and scale of using natural gas are developed rapidly, and more and more attention is paid to the research and exploitation of natural gas. This paper introduces the composition and new application of natural gas.

In this paper some practices and suggestions about green chemistry education are given for students in organic chemistry teaching, including greening of reagent, greening of reaction condition and greening of aiming product.

Polymeric flocculant plays an important role in the technologies of water treatment,and becomes a indispensable reagent in wastewater treatment nowadays. This paper introduces the flocculation mechanism,sorts,characters and application of polymeric flocculant.

Helping students to develop proper view of nature of science is one of the important goals of education of science, and that the teachers have ideal view of nature of science is an essential condition to a- chieve this goal. However, some investigation shows that nowadays the science teachers' view of nature of science is basically in a simple level, and needs to improve. Therefore, this paper gives a set of strategies for developing science teachers′view of nature of science based on the comprehensive analysis of domestic and foreign correlation research.