is what keeps things going. Learn about the various forms
of energy and about the interaction between energy and matter.
AND ITS FORMS
Learn that energy cannot be created or destroyed, but only
changed from one form to another.
from the Sun
Learn the various forms in which energy comes to Earth from
the sun (e.g. visible light, infrared and microwave).
Learn that energy conversions are never 100% efficient (i.e.,
some energy is transformed to heat and is unavailable for
further useful work).
of Thermal Energy
Learn the processes by which thermal energy tends to flow
from a system of higher temperature to a system of lower temperature.
Learn the properties of waves (e.g. frequency, wavelength
and amplitude); that each wave consists of a number of crests
and troughts; and the effects of different media on waves.