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Chemical Reactions Unit (Lessons (Electrons and Chemical bonding. How…
Chemical Reactions Unit
MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine
if a chemical reaction has occurred
MS-PS1-5. Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and
thus mass is conserved.
Microconcepts/Vocabulary
Transfer, Interaction, Matter, Energy, Conservation, Balance, Bonding
Essential Questions
How does a chemical reaction occur?
What are the products of a chemical reaction?
Which properties of substances change during a reaction?
Objectives
Students will understand that Matter cannot be created or destroyed, therefore chemical equations must be equal before and after the reaction.
Students will understand that the Interaction of elements includes the transfer of electrons
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Lessons
- Electrons and Chemical bonding. How valence electrons are either shared or transferred between atoms.
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3: Ionic bonds-forms when one atom transfers electrons to another atom. These types of bonds form to satisfy the outer shell of valence electrons
4: Metallic Bonds- A bond that is formed by the attraction between the positively charged metal ions and the electrons in the metal.
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Modifications
Group work and projects will be used to accommodate and diverse, ELL, or special needs students, as well as specialized testing and teacher guidance/supervision.