Science - Chemistry
Lesson Plans

Standard 4

Students will understand that in chemical reactions matter and energy change forms, but the amounts of matter and energy do not change.

Objective 1

Identify evidence of chemical reactions and demonstrate how chemical equations are used to describe them.

• A Modern Day Con Game
  Students read a description of an attempted forgery that was solved using a silver chloride precipitation reaction. They will write the chemical equations for the reactions and make an illustration for the reading selection.
• Balancing Act
  Students will use wooden atoms to model and balance a chemical reaction.
• Bang!
  Student will observe a reaction between vinegar and baking soda and then design an experiment to test a variable affecting the reaction.
• Cake Lab
  Students will bake a cake, brownies, cookies etc. This will be used to introduce chemical reactions and writing balanced equations.
• Chemical Reactions and Equations
  With this experiment, students will iIdentify evidence of chemical reactions and demonstrate how chemical equations are used to describe them.
• How Do You Know When a Chemical Reaction Has Occurred?
  With this simple Inquiry lab students will be introduced to chemical reactions.
• Incomplete Combustion: Chemistry of Air Pollution
  Students will design and carry out a class experiment comparing the emissions of a diesel and gasoline car then use chemical equations and molar proportions to see why larger molecules are more difficult to burn completely.
• Observing Reactions in Lightsticks
  Students will use lightsticks to understand the chemical reaction that takes place when it is snapped.
• Reactions!
  Students use colored marshmallows (representing atoms) to construct compounds and arrange them into a balanced chemical equation.
• Recognizing Chemical Reactions
  Students will add 4 chemicals to a beaker and observe the changes that take place. They will classify them as physical or chemical changes.
• Types of Chemical Reactions Jigsaw
  Students will perform chemical reactions for the class to observe evidence of reactions and write equations to describe the reaction.

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