1. Take one red piece in each hand. Find the post and hole on the inside rim of each red piece.
2. Align the post and holes of the two pieces and push together until they fit tightly.
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3. Take the red oxygen atom in one hand and one white hydrogen piece with a magnet* in your other hand.
4. Push the two pieces together until the hydrogen fits tightly onto the oxygen.
5. Repeat with a second white hydrogen piece with a magnet.
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You now have one complete water molecule model. Repeat with remaining parts until you've built 12 water molecules.
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