learned what energy is

learned about the various forms of energy

learned about the ways in which energy can be changed from one form to another

learned about the law of conservation of energy and the concept of energy efficiency

learned about how thermal energy works and how we use thermal energy

learned about the connection between thermal energy and kinetic energy

learned about the connection between heat and temperature

learned about how thermal energy can be transferred from one substance to another

learned how heat is transferred through convection, conduction, and radiation

learned how important heat transfer in nature is to our environment

looked at some simple machines we use to do work

considered how the law of conservation applies to machines

examined why people want to make machines more efficient

learned about electricity and the important role it has in our energy use

learned about how energy systems use electricity to work

learned ways to make your energy use more efficient

learned how resistance works to convert electric energy into other forms of energy

learned the terms that describe an energy conversion system

learned some ways energy can be converted to another form for use in your home

learned more about how to be energy efficient and make choices that conserve energy