Investigative Flight

Materials:
- Paper
- Scissors
- Straw
- Tape
- Ruler

Procedure:
1. Cut a piece of paper 5 cm by 15 cm. Hold it against your lower lip.
2. Now blow across the surface. What happens?
3. Use another piece of paper and this time bend it to the shape of a wing, curved on top and flat at the bottom. Tape the ends together.
4. Put a straw through the wider end and let the paper hang down.
5. Blow over the wing. What happens?

Procedure:
1. Cut two strips of paper; one 2 cm by 24cm and the other 1.5 cm by 18 cm.
2. Make each strip into a loop by overlapping the edges by 1 cm and taping them.
3. Insert a straw into the two ‘pockets’ you have made.
4. Throw it like a spear. Compare it with throwing a straw on its own.