What you need to know: BenchmarkChecklist 
 The student identifies forms of energy and explains that they can be measured and compared.SC.B.1.3.1  
 The student knows that energy cannot be created or destroyed, but only changed from one form to another. SC.B.1.3.2  
 The student knows the various forms in which energy comes to Earth from the sun (e.g., visible light, infrared, and microwave). SC.B.1.3.3 
 The student knows that energy conversions are never 100% efficient (i.e., some energy is transformed to heat and is unavailable for further useful work).  SC.B.1.3.4  
 The student knows the processes by which thermal energy tends to flow from a system of higher temperature to a system of lower temperature.  SC.B.1.3.5 
 The student knows the properties of waves (e.g., frequency, wavelength, and amplitude); that each wave consists of a number of crests and troughs; and the effects of different media on waves. SC.B.1.3.6 
 The student knows that most events in the universe (e.g., weather changes, moving cars, and the transfer of a nervous impulse in the human body) involve some form of energy transfer and that these changes almost always increase the total disorder of the system and its surroundings, reducing the amount of useful energy. SC.B.2.3.1 
 The student knows that most of the energy used today is derived from burning stored energy collected by organisms millions of years ago (i.e., nonrenewable fossil fuels).  SC.B.2.3.2 
Bold = Questions are asked on these topics EVERY year!