The Atomic Nature Of Matter
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What is matter?
Matter is anything that takes up space and has mass.
What are the three states of matter?
Solid, liquid and gas.
What are all physical things in the universe?
Matter
What are the smallest parts of matter?
Atoms
What’s an atom?
The smallest part of a chemical element that can exist.
What is all things that make up matter, including atoms called?
Particles
What can help explain the atomic nature of matter?
Models
Can atoms be destroyed in chemical reactions?
No
What’s a molecule?
Atoms bonded together.
What’s an element?
Made of one type of atom, found on periodic table of elements.
Do solids have a definite shape?
Yes
What are elements made out of?
A bunch of atoms together to make an element.
What’s the change from solid to liquid?
Melting
What’s the change from liquid to solid?
Freezing
What’s the change from liquid to gas?
Evaporation
What’s the change from gas to liquid?
Condensation?
What’s the change from solid to gas?
Sublimation
What are particles in solids, liquids and gases constantly doing?
Vibrating
What happens to particles in atoms when they get heat energy?
They vibrate more and move around.
What happens to particles when they lose heat and energy?
They slow down and vibrate less.
What is diffusion?
The spreading out of materials due to the movement of their particles.
Where does diffusion take place?
From an area of high concentration to an area of low concentration.
Give 3 everyday examples of diffusion.
• MiWadi • an air diffuser • deodorant