Water Kit©  Contents and Assembly Directions

Find information about the contents of each Water Kit© cup and step-by-step directions for assembling water molecules, ethane and ethanol.

WK Contents and Assembly

Disinfecting Kits


  • 24 Oxygen* Pieces (Used to Assemble 12 Water Molecule Models)
  • 24 Hydrogen* Pieces (Used to Assemble 12 Water Molecule Models)
  • 1 Chloride* (Chlorine) Model
  • 1 Sodium* Model
  • 2 Carbon Pieces (Used to Assemble 1 Ethane Model)
  • 6 Hydrogen** Pieces without Magnets (Used to Assemble 1 Ethane Model)
  • 1 Post (Used to Assemble 1 Ethane Model)
  • 1 Hydroxyl* Group Model (Preassembled)

*North and south poles on embedded magnets simulate the partially positive and negative charges of oxygen and hydrogen atoms, and chloride and sodium ions.

**The hydrogen pieces for the ethane model do not include embedded magnets, since ethane is nonpolar.

Assembling 3D Water Molecules

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.

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.

You now have one complete water molecule model. Repeat with remaining parts until you've built 12 water molecules.


Assembling 3D Ethane

1. Take a gray carbon piece and fold the three sections together until it is completely closed.

2. Attach one white hydrogen piece without a magnet** to one of the knobs on the carbon.

3. Repeat with two more hydrogen pieces.

4. Turn the carbon until you see the hole on one side. Take the other carbon, press the three sections together and insert one of its knobs into the hole of the first carbon.

5. Attach the three remaining hydrogen pieces to the knobs on the second carbon piece.

6. Insert the gray post into the last white hydrogen piece.

7. Insert the post (now attached to the hydrogen piece) into the hole of the second carbon.

You now have an ethane model.


Assembling 3D Ethanol

1. To change ethane into ethanol, first locate the hydrogen with the attached post. Look for the hydrogen that is surrounded by three tiny triangular bumps (see black circles on photo). 


2. Remove the hydrogen with the post and insert the exposed knob on the preassembled hydroxyl group into the exposed hole on ethane model.


You now have an ethanol model.