The Smallest Pieces of Everything 🤔
**Atoms** are the tiniest building blocks of everything in the universe. Everything you can see, touch, or even breathe is made of atoms. They are so small that you can't even see them with the most powerful microscopes. Think of them like tiny, tiny LEGO bricks.
A **molecule** is formed when two or more atoms stick together. For example, a molecule of water is made up of two hydrogen atoms and one oxygen atom. So, a molecule is a group of atoms working together.
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Video: Building with Atoms! 🎬
Watch how tiny atoms can connect to form molecules.
Practice Problems (Is it an Atom or a Molecule?)
Read the description and click if it's an atom or a molecule.
1) A single particle of Oxygen (O).
2) A group of two hydrogen and one oxygen.
3) The smallest piece of Gold (Au).
4) Two oxygen atoms bonded together (O₂).
⚡ Sort the Items!
Drag the item to the correct box: is it an atom or a molecule?
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Drag these items to the right boxes!
Atom 🟡
Molecule 🔗
A single Carbon atom (C)
A salt crystal (NaCl)
A water molecule (H₂O)
A Helium particle (He)
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