Vocabulary
instrument used to measure the average kinetic energy of particles on a substance
Thermometer
No definite volume or shape
gas
What happens when particles are cooled?
Less kinetic energy
volume decreases/contracts
Higher temperature means what in terms of kinetic energy?
More kinetic energy
Temperature change, bubble formation, or precipitate formation would be signs of this type of change.
chemical change
definite volume- no definite shape
liquid
What happens when particles are heated?
move faster
increase kinetic energy
volume expands
Lower temperature means what in terms of kinetic energy?
Less kinetic energy
decrease in volume due to decrease in kinetic energy
contraction
This phase of matter has particles that vibrate in place. The particles do not move past each other.
solid
Removing heat from a liquid will eventually do this to it.
freeze it
Explain why you should not leave a lid on a container in the microwave.
The particles inside the container will speed up, causing more collision, and will "pop" the lid off of the container.
energy in motion
kinetic energy
This state of matter has particles that can smoothly move past each other
What is liquid?
Explain what happens to the particles in a balloon. What causes the balloon to inflate?
The particles speed up and have more collisions. Those collisions cause the balloon to inflate.
Why do sidewalks have spaces between the cement pieces?
leave room for expansion and contraction
increase in volume due to increase in kinetic energy
has a definite shape and volume
solid
Explain how a thermometer is an example of a liquid expanding and contracting.
Explain why a bottles are never filled to the top of their container.
Liquids expand and contract-- The liquid could expand and pop the cap off of the bottle.