Mon Prof Augmenté
Building molecules from atoms
Age 13 · Chemistry
Open to everyone until Friday, October 30
To keep it, print it while it is open.
Everything around you is made of tiny particles called atoms. When atoms join together, they form a molecule, which we can show with balls for atoms and sticks for the bonds between them.
In the picture
- Water molecule (H₂O): one oxygen atom joined to two hydrogen atoms
- Carbon dioxide molecule (CO₂): one carbon atom between two oxygen atoms
- Dioxygen molecule (O₂): two oxygen atoms joined together
- Double bond: two links holding a pair of atoms together
Examples
- The water you drink is made of billions of H₂O molecules.
- The bubbles in fizzy drinks are carbon dioxide molecules.
Key takeaways
- All matter is made of atoms.
- A molecule is a group of atoms bonded together.
Quiz: Building molecules from atoms (Age 13)
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What is all matter around you made of?
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What is a molecule?
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Which atoms make up a water molecule (H₂O)?
The answers, each with its explanation, are in the app. This quiz is free there while the lesson is in the free week.
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