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Science Lesson 2

Vocabulary

QuestionAnswer
What is a theory An idea
What is aScanning-tunneling microscope Used to be able to see an atom
When atoms join they become this molecule
Air is made of these two molecules nitrogen and oxygen
Water is made of these two elements hydrogen and oxygen
What is diffusion movement
Who is Democritus an ancient Greek who said everything is made of particles
What are atoms basic building blocks of everything you see
What are cells made of atoms
Created by: tina.coultas
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