This demonstration is an entertaining way to introduce simple chemical reactions and the types of evidence that indicate the occurrence of chemical change, including the production of a gas. A link can be provided to the gas tests conducted in Grade 9 to help focus students’ observations. Since this demonstration involves a decomposition reaction, it can be used to introduce the classification of the different types of chemical reactions.
Categories: Lab/Student Activity
In this inquiry activity, students will explore the importance of biodiversity and minimizing human impacts on natural systems. Through student created models and investigations about habitats,... read more
Categories: Teacher Demonstration
This demonstration uses food and a series of containers and additives to model the process of mechanical and chemical digestion in the human (mammalian) digestive system. The demonstration begins... read more
Over-arching Inquiry: Can the understanding of biodiversity help us to analyze the impact of man's actions? Learning Goal: Explain why biodiversity is important to maintaining viable ecosystems;... read more