Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 Unit Description and Student Understandings: Chemical reactions will be classified and related to the Law of Conservation of Matter and balancing chemical equations. The pH of substances will be investigated using a variety of indicators. Chemical concepts will be applied to students’ personal environments. Students will observe a number of chemical changes and predict the results of planned laboratory activities and investigations. Students will identify the signs of a chemical reaction, name chemical compounds from the formula, determine the correct formulas for compounds using information on elements in the periodic table, classify chemical reactions, balance chemical equations, identify endothermic and exothermic reactions, and measure temperature and pH changes. Students will learn about the process of dissolving and how to quantify concentration of solutions. Properties of acids, bases, and indicators will be discussed. Students will also learn about the basic structures, nomenclature, and functional groups of organic chemistry. Guiding Questions: 1. 2. 3. 4. 5. 6. 7. 8. 9. Can student identify evidence of chemical reactions? Can student differentiate among types of simple chemical reactions? Can student explain the purpose for balancing equations? Can student recognize the relationship between the mass of the products and the mass of the reactants in a chemical reaction? Can student describe how stated factors affect rate of dissolving? Can student differentiate among acid, base, and neutral substances? Can student determine the pH of substances using indicators and classify the substances as acid, base, or neutral? Can student relate chemistry to everyday life? Can students model or interpret diagrams of simple organic compounds? Key Concepts/Big Idea: When atoms form compounds, each atom is more stable in the compound than it was by itself Atoms form ionic bonds by transferring electrons and form covalent bonds by sharing electrons For both ionic and covalent compounds, you can write a name from the chemical formula or a chemical formula from the name A balanced chemical equation describes the rearrangement of atoms in a chemical reaction. Reactions can be classified based on how atoms are rearranged Exergonic reactions release energy release energy and endergonic reactions absorb energy Every chemical reaction proceeds at a definite rate, which can be speeded up or slowed down by changing the conditions of the reaction A solution forms when a solute or solutes and a solvent or solvents become evenly mixed. In a given amount of solvent, concentration is the amount of solute actually dissolved an d solubility is the maximum amount of solute that can dissolve. Dissolved particles can both lower the freezing point and raise the boiling point of a solvent. 1 Physical Science 2013-2014 Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 Polarity determines which solvent will dissolve a substance. Acids produce hydronium ions (H20+) in water, and bases produce hydroxide ions (0H-) in water. Strength describes the degree to which an acid or base ionizes or dissociates in water; concentration describe the amount of acid or base dissolved in a certain volume of water. An acid and a base react to form a salt and water. Substituted hydrocarbons contain other elements besides carbon and hydrogen. Proteins, carbohydrates, lipids, and nucleic acids are large, organic molecules made by plants and animals.\ An alloy is a mixture of elements that has metallic properties. Ceramics and semiconductors have conductivities that can range from highly insulating to superconductive. A huge variety of human-made products, from plastics to aircraft components, are made from polymers and composites Vocabulary List: Chemical formula, chemical bond, ion, ionic bond, covalent bond, molecule, nonpolar bond, polar bond, polar molecule, nonpolar molecule, oxidation number, binary compound, polyatomic ion, hydrate, chemical reaction, reactants, products, chemical equation, coefficient, balanced chemical equation, mole, molar mass, combustion reaction, synthesis reaction, decomposition reaction, single-displacement reaction, doubledisplacement reaction, precipitate, oxidation, reduction, exergonic reaction, exothermic reaction, endergonic reaction, endothermic reaction, reaction rate, collision model, catalyst, inhibitor, reversible reaction, equilibrium, Le Chatelier’s principle, Solute, solvent, alloy, concentration, solubility, saturated solution, unsaturated solution, supersaturated solution, electrolyte, nonelectrolyte, ionization, dissociation, acid, hydronium ion, indicator, hydroxide ion, base, strong acid, weak acid, strong base, weak base, pH, buffer, neutralization, slat, titration, soap, benzene, organic compound, hydrocarbon, saturated hydrocarbon, unsaturated hydrocarbon, isomer, substituted hydrocarbons, alcohol, ester, amine, aromatic compound, monomer, polymer, depolymerization, protein, carbohydrate, lipid, nucleic acid, deoxyribonucleic acid (DNA), luster, conductivity, ceramics, doping, integrated circuit, synthetic, composite GLEs CCSS Literacy Standards NGSS Practices SI GLEs: 4 (E) Conduct an investigation that includes multiple trials and record, organize, and display data appropriately (SI-H-A2) Instructional Strategies (Activity directions are found in the Unit folder in th grade Science documents on LPSS Blackboard) Textbook Correlation: Vocabulary self-awareness(view literacy strategy descriptions Units 6 Chapter-21—Solutions—pp. 644--675 Chapter—22—Acids, Bases, and Salts—pp. Differentiation (Enrichment/Remediation Strategies) 676—703 learning logs(view literacy strategy descriptions ) Chapter 23—Organic Compounds--pp. 704--763 2 Physical Science 2013-2014 Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 See detailed units for activities, textbook correlations, GLEs and websites SI-5 (E) Activity 1- Evidence of Chemical Reactions Utilize mathematics, organizational tools, and graphing skills to solve problems (SI-H-A3) Focus: Students will understand the difference between the physical and chemical changes and how physical changes do not change the chemical make-up of a substance. Content Literacy Strategies Word grid Learning Logs Content Literacy Strategies Learning Logs Activity 2- Classifying Reaction Types Focus: Students will understand the process of classifying chemical reactions as synthesis, neutralization, decomposition, single replacement, or double replacement. Directed Reading-Thinking Activity (DR-TA) Learning Logs BLM- Types of Chemical Reactions; Chemical Reaction Types demonstration BLM-Balancing Chemical Equations Activity 3- Observing Reaction Types Focus: Students will review the criteria for and process of classifying chemical reactions and observe each type of chemical reaction. Activity 5- In Balance Focus: Students will be gain a deeper understanding of chemical reactions through balancing equations using coefficients. SI-7 (E) Choose appropriate models to explain scientific knowledge or experimental results (e.g. objects, mathematical relationships, plans, schemes, examples, roleplaying, computer simulations)(SIH-A4) Activity 5- In Balance Focus: Students will gain a deeper understanding of chemical reactions through balancing equations using coefficients. If technology is available, an online tutorial on balancing equations can be found at http://science.widener.edu/svb/tutorial/r xnbalancingcsn7.html Content Literacy Strategies 3 Physical Science 2013-2014 Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 Learning Logs BLM-Balancing Chemical Equations SI-9 (E) Write and defend a conclusion based on logical analysis of experimental data (SI-HA6)(SI-H-A2) Activity 1- Evidence of Chemical Reactions Content Literacy Strategies Focus: Word grid Students will understand the difference between the physical and chemical changes and how physical changes do not change the chemical make-up of a substance. Learning Logs Activity 4- Law of Conservation of Mass and Energy Focus: Content Literacy Strategies Learning Logs BLM-Balancing Chemical Equations In this activity, students discover that the Law of Conservation of Mass can be used to determine the mass of a reactant or product in a chemical reaction. Activity 5- In Balance Focus: Students will be gain a deeper understanding of chemical reactions through balancing equations using coefficients. Activity 6- Reaction Rates Focus: Students should demonstrate their understanding through the engagement of a laboratory investigation to determine the effects of (1) temperature, (2) concentration, and (3) amount of surface area on reaction rate, while being able to identify the dependent and independent variables and compare results to discuss the outcome. SI-14 (I) Activity 8- Chemistry in the News Cite examples of scientific advances and emerging technologies and how they affect society (e.g. MRI, DNA in forensics)(SI- Focus: Students will demonstrate knowledge of chemistry being involved in their everyday lives by researching, collecting, and summarizing articles from magazines, newspapers, or the Internet. 4 Physical Science 2013-2014 Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 H-A5) SI-10 (C) Activity 6- Reaction Rates Given a description of an experiment, identify appropriate safety measures (SI-H-A7) Focus: Students should demonstrate their understanding through the engagement of a laboratory investigation to determine the effects of (1) temperature, (2) concentration, and (3) amount of surface area on reaction rate, while being able to identify the dependent and independent variables and compare results to discuss the outcome. Activity 7- Acid, Base, or Neutral Focus: The purpose of this activity is to classify substances as acid, base, or neutral, based on evidence of pH determined by the use of indicators. PS GLE: 1 (I) Measure the physical properties of different forms of matter in metric system units (e.g. length, mass, volume, temperature) (PS-H-A1) Activity 1- Evidence of Chemical Reactions Focus: Content Literacy Strategies Learning Logs Students will understand the difference between the physical and chemical changes and how physical changes do not change the chemical make-up of a substance. Content Literacy Strategies Word grid Learning Logs Activity 4- Law of Conservation of Mass and Energy Focus: In this activity, students discover that the Law of Conservation of Mass can be used to determine the mass of a reactant or product in a chemical reaction. PS-21 (I) Classify changes in matter Activity 1- Evidence of Chemical Reactions Content Literacy Strategies Focus: Students will understand the difference between the physical and 5 Physical Science 2013-2014 Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 as chemical or physical (PS-H-D1) chemical changes and how physical changes do not change the chemical makeup of a substance. Word grid Learning Logs Activity 2- Classifying Reaction Types Focus: Students will understand the process of classifying chemical reactions as synthesis, neutralization, decomposition, single replacement, or double replacement. Activity 3- Observing Reaction Types Focus: Students will review the criteria for and process of classifying chemical reactions and observe each type of chemical reaction. Content Literacy Strategies Learning Logs Directed Reading-Thinking Activity (DR-TA) Content Literacy Strategies Learning Logs BLM- Types of Chemical Reactions; Chemical Reaction Types demonstration PS-22 (I) Activity 1- Evidence of Chemical Reactions Identify evidence of chemical changes (PS-HD1) Focus: Students will understand the difference between the physical and chemical changes and how physical changes do not change the chemical makeup of a substance. Activity 2- Classifying Reaction Types Focus: Students will understand the process of classifying chemical reactions as synthesis, neutralization, decomposition, single replacement, or double replacement. Activity 3- Observing Reaction Types Focus: Students will review the criteria for and process of classifying chemical reactions and observe each type of chemical reaction. Activity 4- Law of Conservation of Mass and Energy Focus: In this activity, students discover that the Law of Conservation of Mass can be used to determine the mass of a reactant or product in a chemical reaction. Content Literacy Strategies Word grid Learning Logs Content Literacy Strategies Learning Logs Directed Reading-Thinking Activity (DR-TA) Content Literacy Strategies Learning Logs BLM- Types of Chemical Reactions; Chemical Reaction Types demonstration Content Literacy Strategies Learning Logs 6 Physical Science 2013-2014 Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 PS-23 (I) Classify unknowns as acidic, basic or neutral using indicators (PS-H-D2) Activity 7- Acid, Base, or Neutral PS-24 (I) Activity 2- Classifying Reaction Types Focus: The purpose of this activity is to classify substances as acid, base, or neutral, based on evidence of pH determined by the use of indicators. Identify balanced equations as neutralization, combination, and decomposition reactions (PS-H-D3) Focus: Students will understand the process of classifying chemical reactions as synthesis, neutralization, decomposition, single replacement, or double replacement. Activity 3- Observing Reaction Types Content Literacy Strategies Learning Logs Directed Reading-Thinking Activity (DR-TA) Learning Logs BLM- Types of Chemical Reactions; Chemical Reaction Types demonstration Content Literacy Strategies Learning Logs BLM-Balancing Chemical Equations Focus: Students will review the criteria for and process of classifying chemical reactions and observe each type of chemical reaction. Activity 5- In Balance Focus: Students will be gain a deeper understanding of chemical reactions through balancing equations using coefficients. PS-25 (I) Activity 6- Reaction Rates Determine the effect of various factors on reaction rate (e.g. temperature, surface area, concentration, agitation) (PS-H-C5) Focus: Students should demonstrate their understanding through the engagement of a laboratory investigation to determine the effects of (1) temperature, (2) concentration, and (3) amount of surface area on reaction rate, while being able to identify the dependent and independent variables and compare results to discuss the outcome. PS-26 (I) Illustrate the laws of concentration of matter and energy through Activity 4- Law of Conservation of Mass and Energy Content Literacy Strategies Focus: In this activity, students discover that the Law of Conservation of Mass can be used to determine the mass of a reactant or product in a chemical reaction. Learning Logs Content Literacy Strategies 7 Physical Science 2013-2014 Lafayette Parish School System 2013---2014 Curriculum Map Physical Science: Unit 6: Chemical Reactions Time Frame: 6 weeks—March 24 – May 9, 2014 balancing simple chemical reactions (PSH-D5) (PS-HD3) (PS-H-D7) Activity 5- In Balance Focus: Students will gain a deeper understanding of chemical reactions through balancing equations using coefficients. PS-28 (I) Activity 7- Acid, Base, or Neutral Identify chemical reactions that commonly occur in the home and nature (PS-H-D7) Focus: The purpose of this activity is to classify substances as acid, base, or neutral, based on evidence of pH determined by the use of indicators . Learning Logs BLM-Balancing Chemical Equations Activity 8- Chemistry in the News Focus: Students will demonstrate knowledge of chemistry being involved in their everyday lives by researching, collecting, and summarizing articles from magazines, newspapers, or the Internet. 8 Physical Science 2013-2014