Studied by 4 people
He saw particles from the pollen jiggling around, They were not alive
so why were they moving
The color spreads through the water, because the particles leave the solid crystal
it dissolves and spread among the water particles
Liquids
________ also have a fixed volume but take the shape of the container.
Condensation
________ occurs when a gas changes into a liquid on cooling and it takes place over a range of temperatures.
Solid Changes
Melting is when a(n) ________ into a liquid.
Evaporation
________ occurs only at the surface of liquids where high energy particles can escape from the liquid's surface at low temperatures, below the b.p.
Solids
________ have a fixed volume and shape and they have a high density.
Low density
Gases have a very ________.
Smells
The ________ are due to tiny particles, which spread because they are by born added by the particles in air, kind of like diffusion.
Gaseous Particles
The pressure that a gas creates inside a closed container is produced by the ________ hitting the inside walls of the container.
Thermal energy
When substances are heated, the particles absorb ________ which is converted into kinetic energy.
Kinetic Energy of Particle
Increase in temperature= increase in ________= increase in movement of particles.
Evaporation
________ occurs when a liquid changes into a gas and occurs over a range of temperatures .
Gaseous particles
________ are in constant and random motion.
Note 
Flashcard (75)