Page 54 - Resources

Lesson 12
ARCHIMEDES’ EXPERIMENTS

Archimedes Screw

Aim: To make a cornflake dispenser

Equipment: Large plastic drinks bottle (one or two litre)
Drawing pin
Wooden dowel (stick)

Card
Sticky tape
Sharp craft knife

Method: 1. Cut the bottom off the plastic bottle. Cut a triangular piece out of the

neck of the bottle.
2. Cut six circles of card, each with the same circumference as the bottle.
3. Cut a hole in the centre of each piece of card, with the same
circumference as the wooden dowel.

4. Cut a slit in each circle from the centre hole to the edge.
5. Stick the circles together to make a spiral.
6. Fix the spiral around the dowel.
7. Push the spiral into the plastic bottle. Secure the end of the dowel to the
bottle lid with a drawing pin.

8. Put the bottle upside down in a bowl of cornflakes. Twist the free end of
the dowel. Cornflakes should be drawn up the bowl.

Observations:

Conclusion:

Draw your cornflake dispenser.

(Greek Grandeur, Hebrew Heart) 80