C.1.4 Describe physical and Students examine and build models of Physical changes any change that does not Structure and function – chemical changes at the particle what samples look like at the change the chemical identity of a substance level. microscopic level. Manipulate Energy and Matter atoms/particles to see that chemical Chemical changes the making and/or – changes rearrange particles and breaking of chemical bonds resulting in the break/form new bonds. formation of new chemical substances Particle smallest individual units of a sample – (formula units, molecules, atoms) C.1.5 Describe the Students look at defining characteristic Solid state of matter characterized by Cause and Effect – characteristics of solids, liquids, of each state of matter. structural rigidity and resistance to changes of and gases and changes in state Students make/examine models of shape or volume Scale, proportion, and at the macroscopic and particles at the Liquid state of matter characterized by quantity – microscopic levels. microscopic/macroscopic levels and nearly constant volume independent of how these particles behave in each of pressure and conforms to the shape of its Energy and Matter the states of matter. container. Gas of matter that expands freely to – fill any space available Change in state transition from one state of – matter to another state of matter Macroscopic visible to the naked eye/large – scale Microscopic visible only with a microscope – or various scale/particle level C.1.6 Demonstrate an Modeling a chemical reaction through Law of conservation of mass matter can be Patterns – understanding of the law of diagrams, manipulatives so that as a changed from one form into another, but the conservation of mass through chemical reaction occurs, the total amount of mass remains the same Proportion, and the use of particle diagrams and that make the reactants Particle diagrams visual depiction in which Quantity – mathematical models. equal that in the final products, just atoms and molecules are drawn as rearranged and bonds formed/broke dots/circles Mathematical models description of a – system using equations
C.1.4 Describe physical and chemical changes at the particle level. Students examine and build models of what samples look like at the microscopic level. Manipulate atoms/particles to see that chemical changes rearrange particles and break/form new bonds. Physical changes – any change that does not change the chemical identity of a substance Chemical changes – the making and/or breaking of chemical bonds resulting in the formation of new chemical substances Particle – smallest individual units of a sample (formula units, molecules, atoms) Structure and function Energy and Matter C.1.5 Describe the characteristics of solids, liquids, and gases and changes in state at the macroscopic and microscopic levels. Students look at defining characteristic of each state of matter. Students make/examine models of particles at the microscopic/macroscopic levels and how these particles behave in each of the states of matter. Solid – state of matter characterized by structural rigidity and resistance to changes of shape or volume Liquid – state of matter characterized by nearly constant volume independent of pressure and conforms to the shape of its container. Gas – of matter that expands freely to fill any space available Change in state – transition from one state of matter to another state of matter Macroscopic – visible to the naked eye/large scale Microscopic – visible only with a microscope or various scale/particle level Cause and Effect Scale, proportion, and quantity Energy and Matter C.1.6 Demonstrate an understanding of the law of conservation of mass through the use of particle diagrams and mathematical models. Modeling a chemical reaction through diagrams, manipulatives so that as a chemical reaction occurs, the that make the reactants equal that in the final products, just rearranged and bonds formed/broke Law of conservation of mass – matter can be changed from one form into another, but the total amount of mass remains the same Particle diagrams – visual depiction in which atoms and molecules are drawn as dots/circles Mathematical models – description of a system using equations Patterns Proportion, and Quantity
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