Related Topics:1. Energy is a physical quantity that follows precise natural laws.4. Various sources of energy are used to power human activities.
Associated Grade Levels:7-89-1011-12
BTU Values in Tree SpeciesAssociated Grade Levels:7-89-1011-12
1.5 Energy comes in different forms and can be divided into categories.
1.7 Many different units are used to quantify energy.
4.3 Fossil and biofuels are organic matter that contain energy captured from sunlight.