As a teacher, how can you make teaching science more fun and interesting for students?

try to use charts pictures and videos for the subject you explain,use scientists as a motivation

Case studies, live examples etc must be used. Now a days many teachers are performing experiments in class itself for subject such as physics. Prof Walter Lewis for example. When the students realise that many things which they come across in daily life has a science behind it, they will appreciate it.

Try to replace your traditional lecture to the flipped classroom instructional method. Recent studies have shown the huge change in students’ performance especially in science and math classes. A flipped classroom is when you reverse the homework practices in the class and having the lecture online (you can search about it more to know this instruction method). Some of the benefits you can get by using flipped classroom instruction are; enhance your interaction with your students, your students will receive your guide and feedback directly while they are working in the activities, your students will be more engaged and enjoy the class process, and you will encourage them by using flipped classroom to gain important skills like to be accountable and self learning.       

rather than lectures, the teacher should incorporate experiments into the instructional design for that particular lesson