Essential Standards – Chemistry - 1st quarter
8P1: Understand the properties of matter and changes that occur when matter interacts in an open and closed container.
Essential Understandings:
Essential Questions:
8P1.1: classify matter as elements, compounds, or mixtures based on how the atoms are packed together in arrangements.
Essential Understandings:
8P1.2: Explain how the physical properties of elements and their reactivity have been used to produce the current model of the Periodic table of elements.
Essential Understanding:
Essential Questions:
8P1.3: Compare physical changes such as size, shape and state to chemical changes that are the result of a chemical reaction to include changes in temperature, color, formation of a gas or precipitate.
Essential Understandings:
Essential Questions:
8P1.4: Explain how the idea of atoms and a balanced chemical equation support the law of conservation of mass.
Essential Understandings
8P1: Understand the properties of matter and changes that occur when matter interacts in an open and closed container.
Essential Understandings:
- Matter can undergo changes when interactions occur.
- The results of the interactions (reaction) are different in closed containers versus open containers.
Essential Questions:
- What happens when matter interacts?
- Why can the results of a reaction be different in an open container versus a closed container?
8P1.1: classify matter as elements, compounds, or mixtures based on how the atoms are packed together in arrangements.
Essential Understandings:
- The atom is the basic building block of matter, that a single atom has mass and takes up space, and that all matter is composed of atoms.
- Each of the elements has distinct atomic structure
- An atom is the smallest unit of an element and that a compound is composed of two or more elements chemically combined.
- In solids that atoms are closely locked in position and can only vibrate; in liquids the atoms and molecules can collide with and move past one another; and in gases the atoms and molecules move independently, colliding frequently
- There is a relationship between phase and density and that density is mass per unit volume.
- How does the arrangement of atoms determine the classification of matter?
- What are the differences between elements, compounds, and mixtures?
8P1.2: Explain how the physical properties of elements and their reactivity have been used to produce the current model of the Periodic table of elements.
Essential Understanding:
- The current model of the Periodic Table of elements is based on the physical properties of the elements and their reactivity.
Essential Questions:
- What is the relationship between the arrangement of the elements on the Periodic Table and their reactivity?
- How do the physical characteristics of elements factor into their arrangement on the Periodic Table?
8P1.3: Compare physical changes such as size, shape and state to chemical changes that are the result of a chemical reaction to include changes in temperature, color, formation of a gas or precipitate.
Essential Understandings:
- Changes in the properties of matter can be physical or chemical.
- Changes in size, shape, and state of matter are considered physical changes.
- Changes in temperature, color, formation of a gas, or formation of a precipitate are considered chemical changes.
Essential Questions:
- What evidence would you look for to identify a physical or chemical change?
8P1.4: Explain how the idea of atoms and a balanced chemical equation support the law of conservation of mass.
Essential Understandings
- Matter cannot be created or destroyed during a reaction.
- The number of atoms does not change during a reaction
- Reactions must be studied in a closed system.
- How does the lay of conservation of mass relate to atoms?
