Atoms and Molecules Worksheet
Explore the basic building blocks of matter with this Grade 3 science worksheet on atoms and molecules.
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Atoms and Molecules
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Read each question carefully and answer to the best of your ability. Remember, everything around us is made of tiny particles!
1. Everything around us, even you, is made of tiny building blocks called .
2. When two or more atoms join together, they form a .
3. Water is a made of hydrogen and oxygen atoms.
4. Atoms are so small, you cannot see them without a special .
1. What is the smallest unit of matter?
A molecule
An atom
A rock
A cell
2. Which of these is an example of a molecule?
A single grain of sand
An oxygen atom (O)
A water molecule (H2O)
A piece of wood
1. All matter is made up of atoms.
True
False
2. Molecules are bigger than atoms.
True
False
1. Imagine you have a tiny LEGO brick. Is it more like an atom or a molecule? Explain why.
2. Can you give an example of something in your classroom that is made of many molecules?