Essential Knowledge and Skills (TEKS)
112.45.4: The student knows the characteristics of matter.
112.45.4.A: differentiate between physical and chemical properties of matter;
112.45.4.B: analyze examples of solids, liquids, and gases to determine their compressibility, structure, motion of particles, shape, and volume;
112.45.4.D: describe the physical and chemical characteristics of an element using the periodic table and make inferences about its chemical behavior.
112.45.5: The student knows that energy transformations occur during physical or chemical changes in matter.
112.45.5.B: identify and measure energy transformations and exchanges involved in chemical reactions;
112.45.5.C: measure the effects of the gain or loss of heat energy on the properties of solids, liquids, and gases.
112.45.6: The student knows that atomic structure is determined by nuclear composition, allowable electron cloud, and subatomic particles.
112.45.6.A: describe the existence and properties of subatomic particles;
112.45.7: The student knows the variables that influence the behavior of gases.
112.45.7.A: describe interrelationships among temperature, particle number, pressure, and volume of gases contained within a closed system;
112.45.8: The student knows how atoms form bonds to acquire a stable arrangement of electrons.
112.45.8.A: identify characteristics of atoms involved in chemical bonding;
112.45.8.C: compare the arrangement of atoms in molecules, ionic crystals, polymers, and metallic substances;
112.45.9: The student knows the processes, effects, and significance of nuclear fission and nuclear fusion.
112.45.9.B: investigate radioactive elements to determine half-life;
112.45.11: The student knows that balanced chemical equations are used to interpret and describe the interactions of matter.
112.45.11.B: demonstrate the use of symbols, formulas, and equations in describing interactions of matter such as chemical and nuclear reactions;
112.45.11.C: explain and balance chemical and nuclear equations using number of atoms, masses, and charge.
112.45.12: The student knows the factors that influence the solubility of solutes in a solvent.
112.45.12.A: demonstrate and explain effects of temperature and the nature of solid solutes on the solubility of solids;
112.45.12.B: develop general rules for solubility through investigations with aqueous solutions;
112.45.13: The student knows relationships among the concentration, electrical conductivity, and colligative properties of a solution.
112.45.13.B: interpret relationships among ionic and covalent compounds, electrical conductivity, and colligative properties of water;
112.45.13.C: measure and compare the rates of reaction of a solid reactant in solutions of varying concentration.
112.45.14: The student knows the properties and behavior of acids and bases.
112.45.14.A: analyze and measure common household products using a variety of indicators to classify the products as acids or bases;
112.45.14.B: demonstrate the electrical conductivity of acids and bases;
112.45.15: The student knows factors involved in chemical reactions.
112.45.15.B: relate the rate of a chemical reaction to temperature, concentration, surface area, and presence of a catalyst.
Correlation last revised: 7/17/2010