Build your own paper helicopter that doesn’t need an engine to fly. Initially, the helicopter falls towards the floor. But suddenly it starts to rotate around its own axis and spirals slowly towards ...

How does Heather's helicopter fly? As the helicopter drops through the air, the air pushes against and around the paper propeller blades. That makes the helicopter spin. Placing a paper clip on the ...

Work with your adult partner to measure, draw, and cut out a helicopter like the one shown. Fold wing A toward you and wing B away from you. Attach a paper clip to the bottom as shown. Lift the ...