4.1a The Sun is a major source of energy for Earth. Other sources of energy include
nuclear and geothermal energy.

4.1b Fossil fuels contain stored solar energy and are considered nonrenewable
resources. They are a major source of energy in the United States. Solar energy, wind,
moving water, and biomass are some examples of renewable energy resources.

4.1d Different forms of energy include heat, light, electrical, mechanical, sound, nuclear,
and chemical. Energy is transformed in many ways.

4.5a Energy cannot be created or destroyed, but only changed from one form into another.

(pp. 30-31)

ELA Standard 1 
Students will read, write, listen, and speak for information and understanding.

ELA Standard 3
Students will read, write, listen, and speak for critical analysis and evaluation.