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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http://www.uen.org - in partnership with Utah State Board of Education (USBE) and Utah System of Higher Education (USHE).  Send questions or comments to USBE Specialist - Milo  Maughan and see the Science - Secondary website. For general questions about Utah's Core Standards contact the Director - Jennifer  Throndsen.

These materials have been produced by and for the teachers of the State of Utah. Copies of these materials may be freely reproduced for teacher and classroom use. When distributing these materials, credit should be given to Utah State Board of Education. These materials may not be published, in whole or part, or in any other format, without the written permission of the Utah State Board of Education, 250 East 500 South, PO Box 144200, Salt Lake City, Utah 84114-4200.