How can you make a classroom interactive for all ages…
Depending on the grade level, science (specifically) needs to have a practical lesson every week if not more. Lower grades can be taught the conceptual concepts:
1. Recycling
2. Water Cycle
3. The Environment
etc.
Within these topics, it is very easy to take a take, prepare a lesson and notify the students that they will have a "lab" tomorrow, or the following class. Recycling can be easy especially if you gat the home-life involved too! Tell the students to bring in an old shoe box or something cardboard. From there you can create a list of things to make! Making gifts and anything actually tangible makes learning easier and it creates a better visual for a school subject.
When older grades come about it's the same exact concepts and topics, however, the labs become more involved and in depth. The more that science is provided as a hands on class experience, the better off the students can and will learn