blue
changing from a solid to a liquid
melting
tool use to measure temperature
thermometer
changing from a liquid to a solid
freezing
the boiling point of water on the Celsius scale
100 degrees Celsius
freezing point or water on the Celsius scale
0 degrees Celsius
has mass and takes up space
matter
molecules move slowest in this state of matter
solid
heat causes molecules in a solid to move ___________
faster
molecules in a gas move slower than in a solid
true or false
false
molecules move fastest in this state of matter
gas
when we add heat to a liquid it becomes gas, what is this called
vaporizing
has mass and takes up space
matter
the amount of matter in something is called its
mass
two states of matter that are fluids
liquid and gas
what 3 things will make water evaporate more quickly
warmer temperatures, moving air, more surface area
when we take away heat from a gas it becomes a liquid, this is called ________
condensing
for this type of change, new substances are created, and the chemical formulas are different
chemical change
the amount of space matter takes up is called its
volume
for this type of change, a substance may look different but the chemical formula does not change.
physical change
new substances are created during this type of change
chemical change