Read about three different green schools in the US.
Lesson 1
Read about how renewable energy sources – like wind and solar – are used to generate electricity.
Lesson 6
Read about most common non-renewable energy sources used for electricity.
Lesson 5
Read about the history of windows and how they’ve changed over the years.
Lesson 10
Read about the benefits and limitations of using coal as our main energy source.
Read about window designs and energy efficiency.
Read about the benefits and limitations of two renewable energy sources.
Read about how sunlight travels in the northern hemisphere.
Lesson 11
