States of Matter Flashcards
(14 cards)
What are the three states of matter?
solids, liquids, & gases.
solids have
a constant shape and volume.
liquids can
change their shape to fit the container they are in, but that liquids cannot change their volume.
gases can
change their shape and volume to fit the container they are in.
all things in the world are made up of
atoms
the atoms in a solid are
a)tightly packed together with very little space between atoms b) arranged in a neat and regular way c) not able to move freely
the atoms in a liquid are
a)tightly packed together with very little space between atoms b)free to move about within the liquid
in a gas
a) atoms can move around freely in all directions b)there are large spaces between all the atoms
melting
is the change from a solid to a liquid
freezing
is the change from a liquid to a solid.
evaporation
is the change from a liquid to a gas.
condensation
is the change from a gas to a liquid.
water freezes and ice melts
at 0°C
water boils and steam condenses
at 100°C