Today we began learning about different types of chemical reactions including synthesis, decomposition, single replacement, double replacement and combustion. We will continue to identify these equations as we start learning to balance them tomorrow.
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I apologize for the lack of notes, but we have been experiencing issues with our internet filter at school and I have been unable to access Weebly to update during school hours. Below you will find all of the recent notes. The images above represent our most recent classwork. We have been using this flowchart to name chemical formulas. We will have a quiz on this concept FRIDAY! Prior to naming chemical formulas, students made flashcards to learn these different polyatomic ions on Friday. We also discussed some different ways to study.
I had a lot of students out of class today due to pictures being made so we are moving the quiz to Thursday in order to give all students a chance to prepare and complete the homework sheet. The homework sheet is also due on Thursday now.
Today we discussed ionic bonding diagrams and reviewed how the charge of the ions helps hold the bond together. Students we given a worksheet and we worked through the first 6 together, applying what we knew about the electrons to figure out the ions formed. Students will turn in this sheet on WEDNESDAY to be graded as part of their bonding quiz. I am posting the answers for 1-6 below.
Over the last two days we have discussed ionic, covalent, and metallic bonding. Below you will find a shortened version of the notes we did in class. We are continuing to study the trends of the periodic table including how valence electrons cause atoms to "behave". From here we will move on to bonding!
Today we reviewed Bohr Models and used them to look at trends on the periodic table. Students learned that elements in the same group or family have the same number of electrons on their outer energy level. They also learned that elements in the same period have the same number of energy levels. This is the beginning of Unit 3. We will review this information once we return from Fall Break and translate this knowledge to the importance of valence electrons and bonding!
Students created a notecard in class that they will be able to use on the test! We will use the entire period for the test. Students will not be allowed extra time outside of this to complete their exam. They should come prepared enough to get through it in that time!
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AuthorI am an 8th grade Science teacher in Leeds, Alabama. This is my fourth year teaching science. As a teacher, I would love nothing more than to teach my kids to question the world around them and to never stop learning. Archives
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