Making Water Molecules

What is the structure of a water molecule? Students use gumdrops to build a water molecule model. Students often begin with misconceptions about molecules.


per student:

1 lg red gumdrop


2 sm blue gumdrops



toy car

What To Do

EXPLAIN that everything is composed of extremely small atoms. When atoms come together they form molecules. Water, also called H2O, is made up of three atoms: two hydrogen (H) atoms and one oxygen (O) atom.



HOLD up a toy car. COMPARE and CONTRAST the toy car with a real car. DEVELOP a definition of a model with the class.




Students BUILD a water molecule model with one oxygen atom (red gumdrop), two hydrogen atoms (blue gumdrops), and toothpicks.

What's Happening? Find out more about atoms, ions, acids, and bases.

Challenge. Try building other molecular models. You may want to do a little research first. Share your results in our pH Exchange.

Atomic Gumdrops: What does the structure of an atom look like? 


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