Students create unique sounds using different instruments.  In this energy lesson, students read and define several vocabulary terms such as heat, energy transfer and thermal equilibrium.  Students utilize several household...

Students build a refrigerator that does not require electricity. In this environmental science lesson, student consider desert dwellers of Africa who have no access to electricity. Students use flower pots, sand and water to study the...

A profile of David Nelson Crosthwait (1898-1976), an African-American electrical and mechanical engineer. He was considered an authority on heat transfer, ventilation and air conditioning.