This demonstration results in the isolation of DNA from banana. It is very useful for students to see DNA to bring some sense of physical reality to what can be a very abstract topic.
In this demo, a polyethylene strip is charged by rubbing with wool. The strip is then used to test what happens to the flow of charge when the strip is placed in contact with a conductor (iron nail)... read more
Categories: Teacher Demonstration
The International Astronomical Union classifies solar system bodies into three categories: planets, dwarf planets, and small solar system bodies (including comets, asteroids, and... read more
Some examples of simple but effective activities to help students understand better concepts identified as being challenging. Here are examples that might help you with Sig Digs, Kinematics, and... read more