How to Make a Spin Rocket Cartesian Diver

Step-by-Step Guide

1. 1

   Step 1: Cut the bottom off of a small

   Refer to the Things You'll Need section for details on the bottle size.
   
   Cut the bottom, not the edge, when you make this cut.
2. 2

   Step 2: plastic sauce bottle.

   You can just see a small, yellow bead on top of the marble in the photo., Refer to the tips to see exactly where to put the holes.,, The inner bottle will have air in the top.
   
   The marble should cause it to float upright., The outer bottle must be airtight.
3. 3

   Step 3: Put a couple of plastic beads into the bottle

4. 4

   Step 4: then force a glass marble into the bottom end.

5. 5

   Step 5: Use a thumbtack to poke a hole in the side of the bottle

6. 6

   Step 6: just above the marble.

7. 7

   Step 7: Decorate the small bottle with water-resistant tape so that you can see the bottle spinning.

8. 8

   Step 8: Fill the larger plastic bottle with water and put the smaller bottle into it.

9. 9

   Step 9: Screw the cap on securely.

Detailed Guide

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