Introduction: Make a Cartesian Diver
Step 1: Gather Materials
get a bottle with water just below the rim,a pen and some clay
Step 2: Block the Vent
place a small piece of clay on the air vent on the top the cap
Step 3: Add Weight
add a piece of clay on the stick like thing and drop it in water it should float on the top
Step 4: Controls
put on the cap of the bottle, press the bottle to make the diver sink and let go to make it float again
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