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 2

Analyze evidence for the laws of conservation of mass and conservation of energy in chemical reactions.

• Hot and Cold
  Students study the energy associated with physical and chemical changes. The activity consists of observing nine phenomena.
• Hotter All the TIme
  Students will establish the degree of temperature change for a reaction and then change the concentration of one reactant.
• 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.
• Lego Stoichiometry
  Students will use legos or other models of atoms to create molecules.
• Oxidation-Reduction Reactions
  Students will design an experiment that enables them to decide which metals will displace each other from solution and displace hydrogen from an acid.
• Reactions in a Battery
  With this inquiry experiment students will design their own batteries and learn about why batteries work.
• S'mores Lab
  Students will relate the making of s'mores to limiting reagents and theoretical and actual yields.
• Serious Stoichiometry
  Students will perform a lab to observe a chemical reaction. One reactant is weighed and one product is isolated, allowing students to determine both a theoretical mole ratio (using stoichiometry) and an experimental mole ratio.

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