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Water Molecule

Atoms join in set combinations to make molecules. Two hydrogen atoms and one oxygen atom join to form one water molecule.

In the picture

  1. Large central sphere: an oxygen atom
  2. Upper-left small sphere: a hydrogen atom
  3. Lower-right small sphere: a hydrogen atom

Examples

  • A water molecule in a raindrop.
  • A water molecule in a glass of drinking water.

Quiz: Water Molecule (Age 10)

  1. What is a water molecule made of?

    • One hydrogen atom and two oxygen atoms
    • Two hydrogen atoms and one oxygen atom
    • Two oxygen atoms and two hydrogen atoms
  2. According to the card, how do atoms make molecules?

    • They link together in specific combinations
    • They link together only when they are in water
    • They link together in any random combination
  3. What do two hydrogen atoms and one oxygen atom join to form?

    • One oxygen molecule
    • One hydrogen molecule
    • One water molecule

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.

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Science, Age 10