3D Molecular Designs Contents of Water Kit User manual

3dmoleculardesigns.com Contents and Assembly Directions - Page 1
© Copyright 2002, 2013. All rights reserved.
. . .where molecules become real
TM
Water Kit© Contents Per Cup
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.
Assembly directions begin on page 2.
Please note as part of our quality control program, we pre-assemble some kits.
Misconception Caution – Although we use magnets to represent the partial positive and negative
charges that exist on the hydrogen and oxygen atoms of water, it is important to explain to your students
that the bonds between atoms are not magnetic.
Contents of Water Kit ©
HH
O
Water molecule (H2O) Sodium Chloride (NaCl)
Na Cl
Ethane molecule (CH3CH3)
H
H
H
H
H
C
C
O
Ethanol molecule (CH3CH2OH)
H
H
H
H
C
C
WARNING: WARNING: CAUTION:
SMALL MAGNETS — This product contains small magnets.
Swallowed magnets can stick together across intestines causing
serious infections and death. Seek immediate medical attention
if magnets are swallowed or inhaled.
CHOKING HAZARD — This product contains small parts and should
be kept out of the reach of children under the age of 3, because the
parts or their pieces may present a choking hazard to small children.
This is a science education
product, not a toy. It is not
intended for children under 8
years old.
! !
Assembly directions begin on page 2

3dmoleculardesigns.com
. . .where molecules become real
TM
Contents and Assembly Directions - Page 2
© Copyright 2002, 2013. All rights reserved.
Assembling 3D Water Molecules
Take one red piece in each hand. You will see one post and one
hole on the inside rim of each red piece.
Position the post of one piece into the hole of the other piece. Place your thumbs
on the at surface of each oxygen piece, and push the two pieces together until
they t tightly and you no longer see a space between the pieces.
The red oxygen atom will now roughly resemble a sphere with two knobs sticking
out of each half.
Take the red oxygen atom in one hand and one white hydrogen piece with a
magnet in the other and place the open side of the hydrogen piece onto the
knob on the oxygen.
Push the two together until the hydrogen ts tightly onto the oxygen, with no
space between the two pieces.
Repeat with a second white hydrogen piece with a magnet.
You now have one complete water molecule model. Repeat steps 1 through 6,
until 12 water molecule models are assembled.
Start by selecting two red oxygen pieces and two white hydrogen pieces with magnets.
Assembly directions continued on page 3
Hydrogen with
magnet

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. . .where molecules become real
TM
Contents and Assembly Directions - Page 3
© Copyright 2002, 2013. All rights reserved.
Assembling Ethane
You will use two gray carbon pieces, six white
hydrogen pieces without magnets and the
small gray post to assemble the ethane model.
The six hydrogen pieces without magnets are
packed in a zip bag to keep them separate
from the hydrogen pieces that attach to the
oxygen for water molecules.
post
Hydrogen
with magnet
knob
Start by selecting one of the gray carbon pieces and folding the three sections
together until it is completely closed.
Attach one white hydrogen piece to one of the knobs on the carbon.
Repeat with two more hydrogen pieces.
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 rst carbon. Attach the three
remaining hydrogen pieces to the knobs on the
second carbon piece.
Insert the gray post into the last white
hydrogen piece.
Assembly directions continued on page 4

. . .where molecules become real TM
3dmoleculardesigns.com Contents and Assembly Directions - Page 4
© Copyright 2002, 2013. All rights reserved.
Assembling Ethanol Cont.
Insert the post (now attached to the hydrogen
piece) into the hole of the second carbon.
You now have an ethane model.
Now you have an ethanol model.
To change ethane into ethanol, rst locate the hydrogen with the
attached post. Look for the hydrogen that is surrounded by three
tiny triangular bumps (see black circles on photo).
Remove the hydrogen with the post and insert the exposed knob
on the hydroxyl group into the exposed hole on ethane model.
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