Materials and Apparatus
1. 1.5 litre soda bottle
2. 500 ml mineral water bottle
3. Pen knife
4. Drill with 3/32 inch drill bit
5. Scissors
6. Pen or needle
7. Needle-nose pliers
8. 2 large metal paperclips
9. 200 ml Metric liquid measuring cup
10. Permanent marker
11. 3x Chopsticks
12. 6x ice-cream sticks
13. Stiff ruler (30cm)
14. 4 rubber bands
15. Waterproof sealant (silicon)
16. Bathtub filled with water
Materials and Apparatus

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