Grade 8s have drawn both covalent and ionic bonds after watching short videos about bonding from the website "Brain pop". These bonds have proved to be a bit challenging since students have had to synthesize previous information and create their own bonds based on ionic and covalent bonding rules. We also started on our study guide today which is a support for students. This week we will do a lab on endothermic and exothermic reactions, and determine temperature changes. We will also study how to write basic chemical equations using ions, subscripts, coefficients, and oxidation numbers. Most of our compounds will be binary compounds, or compounds made of two elements, but we will touch on polyatomic atoms, or atoms that act together as one charge. Finally, we will do a lab to illustrate the Law of Conservation of Mass. We will determine the mass of the reactants and compare it to the mass of the products.
Homework of the week:
Monday evening: 1st page of the study guide
Tuesday: 2nd page of the study guide
Wednesday: 3rd page of the study guide: oxidation, subscripts, and binary compounds only
Thursday: worksheet - highlight the subscripts and circle the coefficients. Try to balance the first five equations for bonus marks. Review and study the study guide for ten or more minutes.
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