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Why do scientists use models?
Explain the physical properties of solids, liquids and gases by using the particle model.
What does the particle model assume about the atoms in all forms of matter?
Why is it that solids are incompressible and can hold their shape?
Why do liquids have the ability to flow and take on the shape of their container?
Why is it that gases are highly compressible?
What happens when you increase the temperature of a solid or a liquid?
What happens when the particles in a gas are heated?
How can the particle model explain the changes of state?
How do solids melt?
How does the freezing process in liquids change its state to solids?
What's the difference between boiling and evaporation?
What allows liquid particles to escape and form a gas when heated?
What happens during condensation?
What happens when a solute dissolves in a solvent?
What is diffusion?
Why is it that increasing the temperature speeds up the process of diffusion?
Why is it that diffusion occurs less rapidly in liquids?
How can a perfume particle change direction?
PROPERTIES OF SOLIDS LIQUIDS AND GASES
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