K-7 STANDARD P.CM: CHANGES IN MATTER
Develop an understanding of changes in the state of matter in terms of heating and cooling, and in terms of arrangement and relative motion of atoms and molecules. Understand the differences between physical and chemical changes. Develop an understanding of the conservation of mass. Develop an understanding of products and reactants in a chemical change.
P.CM.M.1 Changes in State-Matter changing from state to state can be explained by using models, which show that matter is composed of tiny particles in motion. When changes of state occur, the atoms and/or molecules are not changed in structure. When the changes in state occur, mass is conserved because matter is not created or destroyed.  
P.CM.M.2 Chemical Changes - Chemical changes occur when two elements and/or compounds react and produce new substances. These new substances have different physical and chemical properties than the original elements and/or compounds. During the chemical change, the number and kind of atoms in the reactants are the same as the number and kind of atoms in the products. Mass is conserved during chemical changes. The mass of the reactants is the same as the mass of the products.

Food Science - Students will answer questions and perform developmentally appropriated experiments pertaining to food chemistry.

Science Crime Busters - The objective is to correctly identify the perpetrators of a crime or crimes by using paper chromatography and analysis of unknown solids, liquids, and plastics found at the scene of a crime. Students may also be asked to interpret the results of DNA evidence, identify hair, fibers, shoe prints, tire treads and fingerprints.