Teachers are required to have fire safety training and permission of the employer before going forward with this demonstration.
The purpose of this demonstration is to illustrate an example of an exothermic reaction while looking at chemical properties of an alcohol. In this demonstration, a paper bill (Canadian or US or play money) of any denomination is lit on fire but it remains intact. The same is then done with a medical alcohol disinfectant pad.
Categories: Lab/Student Activity, Teacher Demonstration
In this demo, a polyethylene rod is charged by rubbing with wool. The charged rod is then used to bend a stream of water flowing from a tap. Different substances have different attractions for... read more
Categories: Lab/Student Activity, Teacher Demonstration
Xylem and phloem tissues make up the "circulatory" system of a plant. The xylem tissues transport water from the roots to all of the other living tissues, while the phloem tissues transport sugars... read more
Categories: Lab/Student Activity, Teacher Demonstration
This activity is a good opportunity for students to exercise their hypothesis-generating skills, practice making quantitative observations, and apply what they have learned about the fire triangle... read more