solids
what is a solid? (key term)
a solid has a definite shape and volume
what is a liquid? (key term)
a liquid has no shape, but has a definite volume
what is a gas? (key term)
is glass a amorphous solid or a crystalline solid?
remember that is can be melted and bent
it is a amorphous solid
what is a solid? (key concept)
This fixed, closely packed arrangement of particles causes a solid to have a definite shape and volume.
what is a liquid? (key concept)
Because its particles are free to move, a liquid has no definite shape, but has a definite volume.
what is a gas? (key concept)
As they move, gas particles spread apart, filling the space between. Thus a gas has neither definite shape nor volume.
if you had one cubic meter of water, and one cubic meter of ice, which would be heavier?
water
what is a crystalline solid?
Crystalline solids are solids that are made up of crystals.
what is viscosity?
Viscosity is a liquid's resistance to flowing.
can a gas change volume?
yes
explain why a sewing needle can float on the surface
because of surface tension.
what is a amorphous solid?
In amorphous solids, the particles are not arranged in a regular pattern.
what is a fluid>
A fluid is a substance that flows.
what would a gas's volume be if i put it into a one cubic meter container.
1 cubic meter
what determines a gas's shape and volume?
what is the difference between amorphous and crystalline solids?
crystalline solids have an orderly arrangement of particles, while amorphous have a irregular makeup.
what is surface tension?
Surface tension is the result of the inward pull among the molecules of a liquid that brings the molecules on the surface closer together.
how would you measure the weight of air?
with a balloon, you fill it with air, and subtract the balloon's weight from the total.
how may liquids be described in terms of shape and volume.
they may be described as having a definite volume, but no shape.