Web Location:http://www.nrs.fs.fed.us/pubs/jrnl/2010/nrs_2010_zhu_001.pdf
Related Topics:1. Energy is a physical quantity that follows precise natural laws.5. Energy decisions are influenced by economic, political, environmental, and social factors.4. Various sources of energy are used to power human activities. 8. Wood based bio-fuels are one form of energy that is renewable
Associated Grade Levels:9-1011-12
1.1 Energy is a quantity that is transferred from system to system.
5.1 Decisions concerning the use of energy resources are made at many levels.
4.3 Fossil and biofuels are organic matter that contain energy captured from sunlight.
1.4 Energy available to do useful work decreases as it is transferred from system to system.
8.3 Pretreatment processess makes sugars more available.
8.6 Liquid fuel can be produced from wood feedstocks.
4.1 Humans transfer and transform energy from the environment into forms useful for human endeavors
1.2 The energy of a system or object that results in its temperature is called thermal energy.
4.2 Humans use of energy is subject to limits and constraints.
8.4 The conversion processess includes adding specific enzymes to make simple sugars available.
8.1 Sources of cellulosic residuals used are found in forest operations and in industry process
4.7 Different sources of energy and different ways energy is transformed, transported, and stored.
5.3 Energy decisions can be made using a systems-based approach.
