Science Chemistry

Melting (heat/energy added)

evaporation (heat/energy added)

condensation (heat/energy removed)

freezing/solidification (heat/energy removed)

• particles closely packed + vibrating.
• fixed shape +volume.

some space for particles to move past each other.

• lots of empty space + movement.
• will flow + take up the space they're in.

all matter is made up of particles.

particles are always moving in motion (from vibrating to moving from place to place) and always have empty space between them.

an atom is the tiniest particle of a substance.

center part of a atom; contains protons and neutrons packed closely together.