D2.1

identify flight-related applications of the properties of air

D2.2

describe the relationships between the four forces of flight – lift, weight, thrust, and drag – that make flight possible

D2.3

describe ways in which flying machines and various organisms use balanced and unbalanced forces to control their flight

D2.4

describe ways in which the four forces of flight can be altered

D2.5

describe characteristics and adaptations that enable organisms to fly